id	sid	tid	token	lemma	pos
ap-1928	1	1	acta	acta	PROPN
ap-1928	1	2	polytechnica	polytechnica	PROPN
ap-1928	1	3	doi:10.14311	doi:10.14311	PROPN
ap-1928	1	4	/	/	SYM
ap-1928	1	5	ap.2013.53.0635	ap.2013.53.0635	PROPN
ap-1928	1	6	acta	acta	PROPN
ap-1928	1	7	polytechnica	polytechnica	PROPN
ap-1928	1	8	53(supplement):635–640	53(supplement):635–640	NUM
ap-1928	1	9	,	,	PUNCT
ap-1928	1	10	2013	2013	NUM
ap-1928	1	11	©	©	PROPN
ap-1928	1	12	czech	czech	PROPN
ap-1928	1	13	technical	technical	PROPN
ap-1928	1	14	university	university	PROPN
ap-1928	1	15	in	in	ADP
ap-1928	1	16	prague	prague	PROPN
ap-1928	1	17	,	,	PUNCT
ap-1928	1	18	2013	2013	NUM
ap-1928	1	19	available	available	ADJ
ap-1928	1	20	online	online	ADV
ap-1928	1	21	at	at	ADP
ap-1928	1	22	http://ojs.cvut.cz/ojs/index.php/ap	http://ojs.cvut.cz/ojs/index.php/ap	PROPN
ap-1928	1	23	tev	tev	NOUN
ap-1928	1	24	gamma	gamma	NOUN
ap-1928	1	25	rays	ray	NOUN
ap-1928	1	26	:	:	PUNCT
ap-1928	1	27	observations	observation	NOUN
ap-1928	1	28	versus	versus	ADP
ap-1928	1	29	expectations	expectation	NOUN
ap-1928	1	30	&	&	CCONJ
ap-1928	1	31	theory	theory	NOUN
ap-1928	1	32	frank	frank	PROPN
ap-1928	1	33	krennrich∗	krennrich∗	PROPN
ap-1928	1	34	department	department	PROPN
ap-1928	1	35	of	of	ADP
ap-1928	1	36	physics	physics	PROPN
ap-1928	1	37	and	and	CCONJ
ap-1928	1	38	astronomy	astronomy	NOUN
ap-1928	1	39	,	,	PUNCT
ap-1928	1	40	iowa	iowa	PROPN
ap-1928	1	41	state	state	PROPN
ap-1928	1	42	university	university	PROPN
ap-1928	1	43	,	,	PUNCT
ap-1928	1	44	ames	ames	PROPN
ap-1928	1	45	,	,	PUNCT
ap-1928	1	46	ia	ia	PROPN
ap-1928	1	47	50011	50011	NUM
ap-1928	1	48	,	,	PUNCT
ap-1928	1	49	usa	usa	PROPN
ap-1928	1	50	∗	∗	PROPN
ap-1928	1	51	corresponding	correspond	VERB
ap-1928	1	52	author	author	NOUN
ap-1928	1	53	:	:	PUNCT
ap-1928	1	54	krennrich@iastate.edu	krennrich@iastate.edu	NOUN
ap-1928	2	1	abstract	abstract	ADJ
ap-1928	2	2	.	.	PUNCT
ap-1928	3	1	the	the	DET
ap-1928	3	2	scope	scope	NOUN
ap-1928	3	3	of	of	ADP
ap-1928	3	4	this	this	DET
ap-1928	3	5	paper	paper	NOUN
ap-1928	3	6	is	be	AUX
ap-1928	3	7	to	to	PART
ap-1928	3	8	discuss	discuss	VERB
ap-1928	3	9	two	two	NUM
ap-1928	3	10	important	important	ADJ
ap-1928	3	11	questions	question	NOUN
ap-1928	3	12	relevant	relevant	ADJ
ap-1928	3	13	for	for	ADP
ap-1928	3	14	tev	tev	PROPN
ap-1928	3	15	γ	γ	PROPN
ap-1928	3	16	-	-	PUNCT
ap-1928	3	17	ray	ray	NOUN
ap-1928	3	18	astronomy	astronomy	NOUN
ap-1928	3	19	;	;	PUNCT
ap-1928	3	20	the	the	DET
ap-1928	3	21	pursuit	pursuit	NOUN
ap-1928	3	22	to	to	PART
ap-1928	3	23	reveal	reveal	VERB
ap-1928	3	24	the	the	DET
ap-1928	3	25	origin	origin	NOUN
ap-1928	3	26	of	of	ADP
ap-1928	3	27	cosmic	cosmic	ADJ
ap-1928	3	28	rays	ray	NOUN
ap-1928	3	29	in	in	ADP
ap-1928	3	30	our	our	PRON
ap-1928	3	31	galaxy	galaxy	NOUN
ap-1928	3	32	,	,	PUNCT
ap-1928	3	33	and	and	CCONJ
ap-1928	3	34	the	the	DET
ap-1928	3	35	opacity	opacity	NOUN
ap-1928	3	36	of	of	ADP
ap-1928	3	37	the	the	DET
ap-1928	3	38	universe	universe	NOUN
ap-1928	3	39	in	in	ADP
ap-1928	3	40	γ	γ	NOUN
ap-1928	3	41	-	-	NOUN
ap-1928	3	42	rays	ray	NOUN
ap-1928	3	43	.	.	PUNCT
ap-1928	4	1	the	the	DET
ap-1928	4	2	origin	origin	NOUN
ap-1928	4	3	of	of	ADP
ap-1928	4	4	cosmic	cosmic	ADJ
ap-1928	4	5	rays	ray	NOUN
ap-1928	4	6	stipulated	stipulate	VERB
ap-1928	4	7	the	the	DET
ap-1928	4	8	field	field	NOUN
ap-1928	4	9	of	of	ADP
ap-1928	4	10	tev	tev	PROPN
ap-1928	4	11	astronomy	astronomy	NOUN
ap-1928	4	12	in	in	ADP
ap-1928	4	13	the	the	DET
ap-1928	4	14	first	first	ADJ
ap-1928	4	15	place	place	NOUN
ap-1928	4	16	,	,	PUNCT
ap-1928	4	17	and	and	CCONJ
ap-1928	4	18	led	lead	VERB
ap-1928	4	19	to	to	ADP
ap-1928	4	20	the	the	DET
ap-1928	4	21	development	development	NOUN
ap-1928	4	22	of	of	ADP
ap-1928	4	23	the	the	DET
ap-1928	4	24	atmospheric	atmospheric	ADJ
ap-1928	4	25	cherenkov	cherenkov	NOUN
ap-1928	4	26	technique	technique	NOUN
ap-1928	4	27	;	;	PUNCT
ap-1928	4	28	significant	significant	ADJ
ap-1928	4	29	progress	progress	NOUN
ap-1928	4	30	has	have	AUX
ap-1928	4	31	been	be	AUX
ap-1928	4	32	made	make	VERB
ap-1928	4	33	in	in	ADP
ap-1928	4	34	the	the	DET
ap-1928	4	35	last	last	ADJ
ap-1928	4	36	decade	decade	NOUN
ap-1928	4	37	through	through	ADP
ap-1928	4	38	the	the	DET
ap-1928	4	39	detection	detection	NOUN
ap-1928	4	40	of	of	ADP
ap-1928	4	41	several	several	ADJ
ap-1928	4	42	supernova	supernova	NOUN
ap-1928	4	43	remnants	remnant	NOUN
ap-1928	4	44	,	,	PUNCT
ap-1928	4	45	the	the	DET
ap-1928	4	46	primary	primary	ADJ
ap-1928	4	47	suspects	suspect	NOUN
ap-1928	4	48	for	for	ADP
ap-1928	4	49	harboring	harbor	VERB
ap-1928	4	50	the	the	DET
ap-1928	4	51	acceleration	acceleration	NOUN
ap-1928	4	52	sites	site	NOUN
ap-1928	4	53	of	of	ADP
ap-1928	4	54	cosmic	cosmic	ADJ
ap-1928	4	55	rays	ray	NOUN
ap-1928	4	56	.	.	PUNCT
ap-1928	5	1	tev	tev	PROPN
ap-1928	5	2	γ	γ	NOUN
ap-1928	5	3	-	-	PUNCT
ap-1928	5	4	rays	ray	NOUN
ap-1928	5	5	propagate	propagate	VERB
ap-1928	5	6	mostly	mostly	ADV
ap-1928	5	7	unhindered	unhindered	ADJ
ap-1928	5	8	through	through	ADP
ap-1928	5	9	the	the	DET
ap-1928	5	10	galactic	galactic	ADJ
ap-1928	5	11	plane	plane	NOUN
ap-1928	5	12	,	,	PUNCT
ap-1928	5	13	making	make	VERB
ap-1928	5	14	them	they	PRON
ap-1928	5	15	excellent	excellent	ADJ
ap-1928	5	16	probes	probe	NOUN
ap-1928	5	17	of	of	ADP
ap-1928	5	18	processes	process	NOUN
ap-1928	5	19	in	in	ADP
ap-1928	5	20	snrs	snrs	NOUN
ap-1928	5	21	and	and	CCONJ
ap-1928	5	22	other	other	ADJ
ap-1928	5	23	galactic	galactic	ADJ
ap-1928	5	24	sources	source	NOUN
ap-1928	5	25	.	.	PUNCT
ap-1928	6	1	key	key	ADJ
ap-1928	6	2	results	result	NOUN
ap-1928	6	3	related	relate	VERB
ap-1928	6	4	to	to	ADP
ap-1928	6	5	the	the	DET
ap-1928	6	6	snr	snr	PROPN
ap-1928	6	7	origin	origin	NOUN
ap-1928	6	8	of	of	ADP
ap-1928	6	9	cosmic	cosmic	ADJ
ap-1928	6	10	rays	ray	NOUN
ap-1928	6	11	are	be	AUX
ap-1928	6	12	discussed	discuss	VERB
ap-1928	6	13	.	.	PUNCT
ap-1928	7	1	tev	tev	PROPN
ap-1928	7	2	γ	γ	PROPN
ap-1928	7	3	-	-	PUNCT
ap-1928	7	4	ray	ray	NOUN
ap-1928	7	5	spectra	spectra	NOUN
ap-1928	7	6	from	from	ADP
ap-1928	7	7	extragalactic	extragalactic	ADJ
ap-1928	7	8	sources	source	NOUN
ap-1928	7	9	experience	experience	VERB
ap-1928	7	10	significant	significant	ADJ
ap-1928	7	11	absorption	absorption	NOUN
ap-1928	7	12	when	when	SCONJ
ap-1928	7	13	traversing	traverse	VERB
ap-1928	7	14	cosmological	cosmological	ADJ
ap-1928	7	15	distances	distance	NOUN
ap-1928	7	16	.	.	PUNCT
ap-1928	8	1	the	the	DET
ap-1928	8	2	opacity	opacity	NOUN
ap-1928	8	3	of	of	ADP
ap-1928	8	4	the	the	DET
ap-1928	8	5	universe	universe	NOUN
ap-1928	8	6	to	to	ADP
ap-1928	8	7	γ	γ	NOUN
ap-1928	8	8	-	-	NOUN
ap-1928	8	9	rays	ray	NOUN
ap-1928	8	10	above	above	ADP
ap-1928	8	11	10gev	10gev	NOUN
ap-1928	8	12	progressively	progressively	ADV
ap-1928	8	13	increases	increase	VERB
ap-1928	8	14	with	with	ADP
ap-1928	8	15	energy	energy	NOUN
ap-1928	8	16	and	and	CCONJ
ap-1928	8	17	redshift	redshift	NOUN
ap-1928	8	18	;	;	PUNCT
ap-1928	8	19	the	the	DET
ap-1928	8	20	reason	reason	NOUN
ap-1928	8	21	lies	lie	VERB
ap-1928	8	22	in	in	ADP
ap-1928	8	23	their	their	PRON
ap-1928	8	24	pair	pair	NOUN
ap-1928	8	25	production	production	NOUN
ap-1928	8	26	with	with	ADP
ap-1928	8	27	ambient	ambient	ADJ
ap-1928	8	28	soft	soft	ADJ
ap-1928	8	29	photons	photon	NOUN
ap-1928	8	30	from	from	ADP
ap-1928	8	31	the	the	DET
ap-1928	8	32	extragalactic	extragalactic	ADJ
ap-1928	8	33	background	background	NOUN
ap-1928	8	34	light	light	NOUN
ap-1928	8	35	(	(	PUNCT
ap-1928	8	36	ebl	ebl	PROPN
ap-1928	8	37	)	)	PUNCT
ap-1928	8	38	.	.	PUNCT
ap-1928	9	1	while	while	SCONJ
ap-1928	9	2	this	this	PRON
ap-1928	9	3	limits	limit	VERB
ap-1928	9	4	the	the	DET
ap-1928	9	5	γ	γ	PROPN
ap-1928	9	6	-	-	PUNCT
ap-1928	9	7	ray	ray	NOUN
ap-1928	9	8	horizon	horizon	NOUN
ap-1928	9	9	,	,	PUNCT
ap-1928	9	10	it	it	PRON
ap-1928	9	11	offers	offer	VERB
ap-1928	9	12	the	the	DET
ap-1928	9	13	opportunity	opportunity	NOUN
ap-1928	9	14	to	to	PART
ap-1928	9	15	gain	gain	VERB
ap-1928	9	16	information	information	NOUN
ap-1928	9	17	about	about	ADP
ap-1928	9	18	cosmology	cosmology	NOUN
ap-1928	9	19	,	,	PUNCT
ap-1928	9	20	i.e.	i.e.	X
ap-1928	9	21	the	the	DET
ap-1928	9	22	ebl	ebl	PROPN
ap-1928	9	23	intensity	intensity	NOUN
ap-1928	9	24	,	,	PUNCT
ap-1928	9	25	physical	physical	ADJ
ap-1928	9	26	conditions	condition	NOUN
ap-1928	9	27	in	in	ADP
ap-1928	9	28	intergalactic	intergalactic	ADJ
ap-1928	9	29	space	space	NOUN
ap-1928	9	30	,	,	PUNCT
ap-1928	9	31	and	and	CCONJ
ap-1928	9	32	potentially	potentially	ADV
ap-1928	9	33	new	new	ADJ
ap-1928	9	34	interaction	interaction	NOUN
ap-1928	9	35	processes	process	NOUN
ap-1928	9	36	.	.	PUNCT
ap-1928	10	1	results	result	NOUN
ap-1928	10	2	and	and	CCONJ
ap-1928	10	3	implications	implication	NOUN
ap-1928	10	4	pertaining	pertain	VERB
ap-1928	10	5	to	to	ADP
ap-1928	10	6	the	the	DET
ap-1928	10	7	ebl	ebl	NOUN
ap-1928	10	8	are	be	AUX
ap-1928	10	9	given	give	VERB
ap-1928	10	10	.	.	PUNCT
ap-1928	11	1	keywords	keyword	NOUN
ap-1928	11	2	:	:	PUNCT
ap-1928	11	3	supernova	supernova	NOUN
ap-1928	11	4	remnants	remnant	NOUN
ap-1928	11	5	,	,	PUNCT
ap-1928	11	6	starburst	starburst	NOUN
ap-1928	11	7	galaxies	galaxy	NOUN
ap-1928	11	8	,	,	PUNCT
ap-1928	11	9	blazars	blazar	NOUN
ap-1928	11	10	,	,	PUNCT
ap-1928	11	11	gamma	gamma	PROPN
ap-1928	11	12	rays	ray	NOUN
ap-1928	11	13	,	,	PUNCT
ap-1928	11	14	extragalactic	extragalactic	ADJ
ap-1928	11	15	background	background	NOUN
ap-1928	11	16	light	light	NOUN
ap-1928	11	17	,	,	PUNCT
ap-1928	11	18	individual	individual	NOUN
ap-1928	11	19	:	:	PUNCT
ap-1928	11	20	g120.1	g120.1	X
ap-1928	11	21	+	+	NOUN
ap-1928	11	22	1.4	1.4	NUM
ap-1928	11	23	,	,	PUNCT
ap-1928	11	24	rxj1713	rxj1713	NOUN
ap-1928	11	25	,	,	PUNCT
ap-1928	11	26	3946	3946	NUM
ap-1928	11	27	,	,	PUNCT
ap-1928	11	28	m82	m82	PROPN
ap-1928	11	29	,	,	PUNCT
ap-1928	11	30	ngc253	ngc253	PROPN
ap-1928	11	31	.	.	PUNCT
ap-1928	12	1	1	1	X
ap-1928	12	2	.	.	X
ap-1928	12	3	introduction	introduction	NOUN
ap-1928	12	4	the	the	DET
ap-1928	12	5	field	field	NOUN
ap-1928	12	6	of	of	ADP
ap-1928	12	7	tev	tev	PROPN
ap-1928	12	8	astronomy	astronomy	NOUN
ap-1928	12	9	has	have	AUX
ap-1928	12	10	undergone	undergo	VERB
ap-1928	12	11	a	a	DET
ap-1928	12	12	revolution	revolution	NOUN
ap-1928	12	13	over	over	ADP
ap-1928	12	14	the	the	DET
ap-1928	12	15	last	last	ADJ
ap-1928	12	16	decade	decade	NOUN
ap-1928	12	17	as	as	SCONJ
ap-1928	12	18	attested	attest	VERB
ap-1928	12	19	by	by	ADP
ap-1928	12	20	the	the	DET
ap-1928	12	21	dramatic	dramatic	ADJ
ap-1928	12	22	increase	increase	NOUN
ap-1928	12	23	in	in	ADP
ap-1928	12	24	the	the	DET
ap-1928	12	25	number	number	NOUN
ap-1928	12	26	of	of	ADP
ap-1928	12	27	tev	tev	PROPN
ap-1928	12	28	γ	γ	PROPN
ap-1928	12	29	-	-	PUNCT
ap-1928	12	30	ray	ray	NOUN
ap-1928	12	31	sources	source	NOUN
ap-1928	12	32	.	.	PUNCT
ap-1928	13	1	from	from	ADP
ap-1928	13	2	a	a	DET
ap-1928	13	3	handful	handful	NOUN
ap-1928	13	4	of	of	ADP
ap-1928	13	5	sources	source	NOUN
ap-1928	13	6	in	in	ADP
ap-1928	13	7	the	the	DET
ap-1928	13	8	late	late	ADJ
ap-1928	13	9	1990s	1990	NOUN
ap-1928	13	10	,	,	PUNCT
ap-1928	13	11	tev	tev	PROPN
ap-1928	13	12	γ	γ	PROPN
ap-1928	13	13	-	-	PUNCT
ap-1928	13	14	ray	ray	NOUN
ap-1928	13	15	astronomy	astronomy	NOUN
ap-1928	13	16	has	have	AUX
ap-1928	13	17	become	become	VERB
ap-1928	13	18	a	a	DET
ap-1928	13	19	new	new	ADJ
ap-1928	13	20	discipline	discipline	NOUN
ap-1928	13	21	in	in	ADP
ap-1928	13	22	high	high	ADJ
ap-1928	13	23	energy	energy	NOUN
ap-1928	13	24	astrophysics	astrophysic	NOUN
ap-1928	13	25	with	with	ADP
ap-1928	13	26	more	more	ADJ
ap-1928	13	27	than	than	ADP
ap-1928	13	28	150	150	NUM
ap-1928	13	29	objects	object	NOUN
ap-1928	13	30	across	across	ADP
ap-1928	13	31	a	a	DET
ap-1928	13	32	wide	wide	ADJ
ap-1928	13	33	range	range	NOUN
ap-1928	13	34	of	of	ADP
ap-1928	13	35	source	source	NOUN
ap-1928	13	36	classes	class	NOUN
ap-1928	13	37	(	(	PUNCT
ap-1928	13	38	see	see	VERB
ap-1928	13	39	fig	fig	NOUN
ap-1928	13	40	.	.	PUNCT
ap-1928	14	1	1	1	NUM
ap-1928	14	2	)	)	PUNCT
ap-1928	14	3	.	.	PUNCT
ap-1928	15	1	collectively	collectively	ADV
ap-1928	15	2	these	these	DET
ap-1928	15	3	tev	tev	PROPN
ap-1928	15	4	emitters	emitter	NOUN
ap-1928	15	5	provide	provide	VERB
ap-1928	15	6	important	important	ADJ
ap-1928	15	7	constraints	constraint	NOUN
ap-1928	15	8	to	to	ADP
ap-1928	15	9	the	the	DET
ap-1928	15	10	origin	origin	NOUN
ap-1928	15	11	and	and	CCONJ
ap-1928	15	12	propagation	propagation	NOUN
ap-1928	15	13	of	of	ADP
ap-1928	15	14	cosmic	cosmic	ADJ
ap-1928	15	15	particles	particle	NOUN
ap-1928	15	16	(	(	PUNCT
ap-1928	15	17	e±	e±	ADV
ap-1928	15	18	,	,	PUNCT
ap-1928	15	19	p±	p±	PROPN
ap-1928	15	20	,	,	PUNCT
ap-1928	15	21	ions	ion	NOUN
ap-1928	15	22	,	,	PUNCT
ap-1928	15	23	.	.	PUNCT
ap-1928	15	24	.	.	PUNCT
ap-1928	15	25	.	.	PUNCT
ap-1928	15	26	)	)	PUNCT
ap-1928	15	27	.	.	PUNCT
ap-1928	16	1	this	this	DET
ap-1928	16	2	conference	conference	NOUN
ap-1928	16	3	paper	paper	NOUN
ap-1928	16	4	is	be	AUX
ap-1928	16	5	not	not	PART
ap-1928	16	6	intended	intend	VERB
ap-1928	16	7	to	to	PART
ap-1928	16	8	cover	cover	VERB
ap-1928	16	9	the	the	DET
ap-1928	16	10	entire	entire	ADJ
ap-1928	16	11	field	field	NOUN
ap-1928	16	12	of	of	ADP
ap-1928	16	13	tev	tev	PROPN
ap-1928	16	14	γ	γ	PROPN
ap-1928	16	15	-	-	PUNCT
ap-1928	16	16	ray	ray	NOUN
ap-1928	16	17	astronomy	astronomy	NOUN
ap-1928	16	18	;	;	PUNCT
ap-1928	16	19	for	for	ADP
ap-1928	16	20	an	an	DET
ap-1928	16	21	overview	overview	NOUN
ap-1928	16	22	,	,	PUNCT
ap-1928	16	23	see	see	VERB
ap-1928	16	24	[	[	X
ap-1928	16	25	16	16	NUM
ap-1928	16	26	,	,	PUNCT
ap-1928	16	27	20	20	NUM
ap-1928	16	28	,	,	PUNCT
ap-1928	16	29	31	31	NUM
ap-1928	16	30	]	]	PUNCT
ap-1928	16	31	.	.	PUNCT
ap-1928	17	1	instead	instead	ADV
ap-1928	17	2	,	,	PUNCT
ap-1928	17	3	two	two	NUM
ap-1928	17	4	important	important	ADJ
ap-1928	17	5	current	current	ADJ
ap-1928	17	6	topics	topic	NOUN
ap-1928	17	7	in	in	ADP
ap-1928	17	8	tev	tev	PROPN
ap-1928	17	9	astronomy	astronomy	NOUN
ap-1928	17	10	are	be	AUX
ap-1928	17	11	discussed	discuss	VERB
ap-1928	17	12	:	:	PUNCT
ap-1928	17	13	origin	origin	NOUN
ap-1928	17	14	of	of	ADP
ap-1928	17	15	galactic	galactic	ADJ
ap-1928	17	16	cosmic	cosmic	ADJ
ap-1928	17	17	rays	ray	NOUN
ap-1928	17	18	studies	study	NOUN
ap-1928	17	19	of	of	ADP
ap-1928	17	20	particle	particle	NOUN
ap-1928	17	21	acceleration	acceleration	NOUN
ap-1928	17	22	in	in	ADP
ap-1928	17	23	individual	individual	ADJ
ap-1928	17	24	supernova	supernova	NOUN
ap-1928	17	25	remnants	remnant	NOUN
ap-1928	17	26	(	(	PUNCT
ap-1928	17	27	snrs	snrs	NOUN
ap-1928	17	28	)	)	PUNCT
ap-1928	17	29	may	may	AUX
ap-1928	17	30	hold	hold	VERB
ap-1928	17	31	the	the	DET
ap-1928	17	32	key	key	NOUN
ap-1928	17	33	to	to	ADP
ap-1928	17	34	understanding	understand	VERB
ap-1928	17	35	the	the	DET
ap-1928	17	36	origin	origin	NOUN
ap-1928	17	37	of	of	ADP
ap-1928	17	38	cosmic	cosmic	ADJ
ap-1928	17	39	rays	ray	NOUN
ap-1928	17	40	.	.	PUNCT
ap-1928	18	1	if	if	SCONJ
ap-1928	18	2	snrs	snrs	NOUN
ap-1928	18	3	are	be	AUX
ap-1928	18	4	indeed	indeed	ADV
ap-1928	18	5	the	the	DET
ap-1928	18	6	dominant	dominant	ADJ
ap-1928	18	7	acceleration	acceleration	NOUN
ap-1928	18	8	sites	site	NOUN
ap-1928	18	9	of	of	ADP
ap-1928	18	10	cosmic	cosmic	ADJ
ap-1928	18	11	rays	ray	NOUN
ap-1928	18	12	in	in	ADP
ap-1928	18	13	our	our	PRON
ap-1928	18	14	galaxy	galaxy	NOUN
ap-1928	18	15	,	,	PUNCT
ap-1928	18	16	and	and	CCONJ
ap-1928	18	17	given	give	VERB
ap-1928	18	18	certain	certain	ADJ
ap-1928	18	19	reasonable	reasonable	ADJ
ap-1928	18	20	assumptions	assumption	NOUN
ap-1928	18	21	,	,	PUNCT
ap-1928	18	22	earlier	early	ADJ
ap-1928	18	23	predictions	prediction	NOUN
ap-1928	18	24	[	[	X
ap-1928	18	25	10	10	NUM
ap-1928	18	26	]	]	PUNCT
ap-1928	18	27	suggested	suggest	VERB
ap-1928	18	28	that	that	SCONJ
ap-1928	18	29	snrs	snrs	VERB
ap-1928	18	30	up	up	ADP
ap-1928	18	31	to	to	ADP
ap-1928	18	32	distances	distance	NOUN
ap-1928	18	33	of	of	ADP
ap-1928	18	34	several	several	ADJ
ap-1928	18	35	kpc	kpc	NOUN
ap-1928	18	36	should	should	AUX
ap-1928	18	37	be	be	AUX
ap-1928	18	38	detectable	detectable	ADJ
ap-1928	18	39	in	in	ADP
ap-1928	18	40	tev	tev	PROPN
ap-1928	18	41	γ	γ	NOUN
ap-1928	18	42	-	-	NOUN
ap-1928	18	43	rays	ray	NOUN
ap-1928	18	44	.	.	PUNCT
ap-1928	19	1	with	with	ADP
ap-1928	19	2	the	the	DET
ap-1928	19	3	operation	operation	NOUN
ap-1928	19	4	of	of	ADP
ap-1928	19	5	the	the	DET
ap-1928	19	6	current	current	ADJ
ap-1928	19	7	generation	generation	NOUN
ap-1928	19	8	of	of	ADP
ap-1928	19	9	atmospheric	atmospheric	ADJ
ap-1928	19	10	cherenkov	cherenkov	NOUN
ap-1928	19	11	telescopes	telescope	NOUN
ap-1928	19	12	(	(	PUNCT
ap-1928	19	13	acts	act	NOUN
ap-1928	19	14	)	)	PUNCT
ap-1928	19	15	,	,	PUNCT
ap-1928	19	16	i.e.	i.e.	X
ap-1928	19	17	,	,	PUNCT
ap-1928	19	18	magic	magic	NOUN
ap-1928	19	19	,	,	PUNCT
ap-1928	19	20	hess	hess	NOUN
ap-1928	19	21	and	and	CCONJ
ap-1928	19	22	veritas	verita	NOUN
ap-1928	19	23	,	,	PUNCT
ap-1928	19	24	tev	tev	PROPN
ap-1928	19	25	astronomy	astronomy	NOUN
ap-1928	19	26	has	have	AUX
ap-1928	19	27	become	become	VERB
ap-1928	19	28	a	a	DET
ap-1928	19	29	powerful	powerful	ADJ
ap-1928	19	30	and	and	CCONJ
ap-1928	19	31	promising	promising	ADJ
ap-1928	19	32	tool	tool	NOUN
ap-1928	19	33	for	for	ADP
ap-1928	19	34	pinning	pin	VERB
ap-1928	19	35	down	down	ADP
ap-1928	19	36	the	the	DET
ap-1928	19	37	locations	location	NOUN
ap-1928	19	38	of	of	ADP
ap-1928	19	39	cosmic	cosmic	ADJ
ap-1928	19	40	-	-	PUNCT
ap-1928	19	41	ray	ray	NOUN
ap-1928	19	42	accelerators	accelerator	NOUN
ap-1928	19	43	in	in	ADP
ap-1928	19	44	our	our	PRON
ap-1928	19	45	galaxy	galaxy	NOUN
ap-1928	19	46	.	.	PUNCT
ap-1928	20	1	snrs	snrs	PROPN
ap-1928	20	2	in	in	ADP
ap-1928	20	3	environments	environment	NOUN
ap-1928	20	4	that	that	PRON
ap-1928	20	5	contain	contain	VERB
ap-1928	20	6	sufficient	sufficient	ADJ
ap-1928	20	7	amounts	amount	NOUN
ap-1928	20	8	of	of	ADP
ap-1928	20	9	target	target	NOUN
ap-1928	20	10	material	material	NOUN
ap-1928	20	11	for	for	ADP
ap-1928	20	12	a	a	DET
ap-1928	20	13	cosmic	cosmic	ADJ
ap-1928	20	14	beam	beam	NOUN
ap-1928	20	15	dump	dump	NOUN
ap-1928	20	16	,	,	PUNCT
ap-1928	20	17	such	such	ADJ
ap-1928	20	18	as	as	ADP
ap-1928	20	19	the	the	DET
ap-1928	20	20	figure	figure	NOUN
ap-1928	20	21	1	1	NUM
ap-1928	20	22	.	.	PUNCT
ap-1928	21	1	the	the	DET
ap-1928	21	2	tev	tev	PROPN
ap-1928	21	3	γ	γ	PROPN
ap-1928	21	4	-	-	PUNCT
ap-1928	21	5	ray	ray	NOUN
ap-1928	21	6	sky	sky	NOUN
ap-1928	21	7	as	as	ADP
ap-1928	21	8	of	of	ADP
ap-1928	21	9	may	may	PROPN
ap-1928	21	10	2012	2012	NUM
ap-1928	21	11	is	be	AUX
ap-1928	21	12	shown	show	VERB
ap-1928	21	13	(	(	PUNCT
ap-1928	21	14	http://tevcat.uchicago.edu/	http://tevcat.uchicago.edu/	ADJ
ap-1928	21	15	)	)	PUNCT
ap-1928	21	16	,	,	PUNCT
ap-1928	21	17	including	include	VERB
ap-1928	21	18	agns	agn	NOUN
ap-1928	21	19	(	(	PUNCT
ap-1928	21	20	red	red	PROPN
ap-1928	21	21	)	)	PUNCT
ap-1928	21	22	,	,	PUNCT
ap-1928	21	23	two	two	NUM
ap-1928	21	24	sb	sb	PROPN
ap-1928	21	25	galaxies	galaxies	PROPN
ap-1928	21	26	(	(	PUNCT
ap-1928	21	27	orange	orange	PROPN
ap-1928	21	28	)	)	PUNCT
ap-1928	21	29	,	,	PUNCT
ap-1928	21	30	pulsar	pulsar	NOUN
ap-1928	21	31	wind	wind	NOUN
ap-1928	21	32	nebulae	nebulae	NOUN
ap-1928	21	33	(	(	PUNCT
ap-1928	21	34	magenta	magenta	NOUN
ap-1928	21	35	)	)	PUNCT
ap-1928	21	36	,	,	PUNCT
ap-1928	21	37	shell	shell	NOUN
ap-1928	21	38	-	-	PUNCT
ap-1928	21	39	type	type	NOUN
ap-1928	21	40	supernova	supernova	NOUN
ap-1928	21	41	remnants	remnant	NOUN
ap-1928	21	42	and	and	CCONJ
ap-1928	21	43	a	a	DET
ap-1928	21	44	molecular	molecular	ADJ
ap-1928	21	45	cloud	cloud	NOUN
ap-1928	21	46	(	(	PUNCT
ap-1928	21	47	green	green	ADJ
ap-1928	21	48	)	)	PUNCT
ap-1928	21	49	,	,	PUNCT
ap-1928	21	50	γ	γ	PROPN
ap-1928	21	51	-	-	PUNCT
ap-1928	21	52	ray	ray	NOUN
ap-1928	21	53	binaries	binary	NOUN
ap-1928	21	54	(	(	PUNCT
ap-1928	21	55	yellow	yellow	ADJ
ap-1928	21	56	)	)	PUNCT
ap-1928	21	57	,	,	PUNCT
ap-1928	21	58	a	a	DET
ap-1928	21	59	globular	globular	ADJ
ap-1928	21	60	cluster	cluster	NOUN
ap-1928	21	61	(	(	PUNCT
ap-1928	21	62	blue	blue	NOUN
ap-1928	21	63	)	)	PUNCT
ap-1928	21	64	,	,	PUNCT
ap-1928	21	65	and	and	CCONJ
ap-1928	21	66	unidentified	unidentified	ADJ
ap-1928	21	67	γ	γ	PROPN
ap-1928	21	68	-	-	PUNCT
ap-1928	21	69	ray	ray	NOUN
ap-1928	21	70	sources	source	NOUN
ap-1928	21	71	(	(	PUNCT
ap-1928	21	72	grey	grey	PROPN
ap-1928	21	73	)	)	PUNCT
ap-1928	21	74	.	.	PUNCT
ap-1928	22	1	compressed	compress	VERB
ap-1928	22	2	gas	gas	NOUN
ap-1928	22	3	in	in	ADP
ap-1928	22	4	shell	shell	NOUN
ap-1928	22	5	-	-	PUNCT
ap-1928	22	6	type	type	NOUN
ap-1928	22	7	snrs	snrs	NOUN
ap-1928	22	8	or	or	CCONJ
ap-1928	22	9	a	a	DET
ap-1928	22	10	nearby	nearby	ADJ
ap-1928	22	11	molecular	molecular	ADJ
ap-1928	22	12	cloud	cloud	NOUN
ap-1928	22	13	,	,	PUNCT
ap-1928	22	14	are	be	AUX
ap-1928	22	15	likely	likely	ADJ
ap-1928	22	16	to	to	PART
ap-1928	22	17	reveal	reveal	VERB
ap-1928	22	18	the	the	DET
ap-1928	22	19	presence	presence	NOUN
ap-1928	22	20	of	of	ADP
ap-1928	22	21	cosmic	cosmic	ADJ
ap-1928	22	22	rays	ray	NOUN
ap-1928	22	23	(	(	PUNCT
ap-1928	22	24	protons	proton	NOUN
ap-1928	22	25	,	,	PUNCT
ap-1928	22	26	ions	ion	NOUN
ap-1928	22	27	)	)	PUNCT
ap-1928	22	28	through	through	ADP
ap-1928	22	29	γ	γ	NOUN
ap-1928	22	30	-	-	NOUN
ap-1928	22	31	rays	ray	NOUN
ap-1928	22	32	from	from	ADP
ap-1928	22	33	neutral	neutral	ADJ
ap-1928	22	34	pion	pion	NOUN
ap-1928	22	35	decays	decay	NOUN
ap-1928	22	36	(	(	PUNCT
ap-1928	22	37	p	p	NOUN
ap-1928	22	38	+	+	CCONJ
ap-1928	22	39	p→	p→	ADJ
ap-1928	22	40	π0	π0	NOUN
ap-1928	22	41	+	+	X
ap-1928	22	42	·	·	PUNCT
ap-1928	22	43	·	·	PUNCT
ap-1928	22	44	·	·	PUNCT
ap-1928	23	1	→	→	SYM
ap-1928	23	2	γ+	γ+	PUNCT
ap-1928	23	3	γ	γ	NOUN
ap-1928	23	4	)	)	PUNCT
ap-1928	23	5	.	.	PUNCT
ap-1928	24	1	however	however	ADV
ap-1928	24	2	,	,	PUNCT
ap-1928	24	3	an	an	DET
ap-1928	24	4	abundance	abundance	NOUN
ap-1928	24	5	of	of	ADP
ap-1928	24	6	relativistic	relativistic	ADJ
ap-1928	24	7	electrons	electron	NOUN
ap-1928	24	8	,	,	PUNCT
ap-1928	24	9	as	as	SCONJ
ap-1928	24	10	indicated	indicate	VERB
ap-1928	24	11	by	by	ADP
ap-1928	24	12	non	non	ADJ
ap-1928	24	13	-	-	ADJ
ap-1928	24	14	thermal	thermal	ADJ
ap-1928	24	15	x	x	ADJ
ap-1928	24	16	-	-	NOUN
ap-1928	24	17	ray	ray	NOUN
ap-1928	24	18	synchrotron	synchrotron	NOUN
ap-1928	24	19	radiation	radiation	NOUN
ap-1928	24	20	,	,	PUNCT
ap-1928	24	21	provides	provide	VERB
ap-1928	24	22	an	an	DET
ap-1928	24	23	unwelcome	unwelcome	ADJ
ap-1928	24	24	background	background	NOUN
ap-1928	24	25	for	for	ADP
ap-1928	24	26	the	the	DET
ap-1928	24	27	635	635	NUM
ap-1928	24	28	http://dx.doi.org/10.14311/ap.2013.53.0635	http://dx.doi.org/10.14311/ap.2013.53.0635	ADP
ap-1928	24	29	http://ojs.cvut.cz/ojs/index.php/ap	http://ojs.cvut.cz/ojs/index.php/ap	PROPN
ap-1928	24	30	http://tevcat.uchicago.edu/	http://tevcat.uchicago.edu/	PROPN
ap-1928	24	31	frank	frank	PROPN
ap-1928	24	32	krennrich	krennrich	PROPN
ap-1928	24	33	acta	acta	PROPN
ap-1928	24	34	polytechnica	polytechnica	PROPN
ap-1928	24	35	search	search	NOUN
ap-1928	24	36	for	for	ADP
ap-1928	24	37	γ	γ	NOUN
ap-1928	24	38	-	-	PUNCT
ap-1928	24	39	ray	ray	NOUN
ap-1928	24	40	emission	emission	NOUN
ap-1928	24	41	of	of	ADP
ap-1928	24	42	hadronic	hadronic	ADJ
ap-1928	24	43	origin	origin	NOUN
ap-1928	24	44	.	.	PUNCT
ap-1928	25	1	relativistic	relativistic	ADJ
ap-1928	25	2	electrons	electron	NOUN
ap-1928	25	3	boost	boost	VERB
ap-1928	25	4	soft	soft	ADJ
ap-1928	25	5	photons	photon	NOUN
ap-1928	25	6	to	to	PART
ap-1928	25	7	tev	tev	VERB
ap-1928	25	8	energies	energy	NOUN
ap-1928	25	9	(	(	PUNCT
ap-1928	25	10	ic	ic	NUM
ap-1928	25	11	)	)	PUNCT
ap-1928	25	12	and	and	CCONJ
ap-1928	25	13	are	be	AUX
ap-1928	25	14	able	able	ADJ
ap-1928	25	15	to	to	PART
ap-1928	25	16	produce	produce	VERB
ap-1928	25	17	γ	γ	NOUN
ap-1928	25	18	-	-	NOUN
ap-1928	25	19	rays	ray	NOUN
ap-1928	25	20	through	through	ADP
ap-1928	25	21	electron	electron	NOUN
ap-1928	25	22	bremsstrahlung	bremsstrahlung	PROPN
ap-1928	25	23	.	.	PUNCT
ap-1928	26	1	the	the	DET
ap-1928	26	2	excellent	excellent	ADJ
ap-1928	26	3	angular	angular	ADJ
ap-1928	26	4	resolution	resolution	NOUN
ap-1928	26	5	of	of	ADP
ap-1928	26	6	acts	act	NOUN
ap-1928	26	7	(	(	PUNCT
ap-1928	26	8	0.1	0.1	NUM
ap-1928	26	9	°	°	NUM
ap-1928	26	10	)	)	PUNCT
ap-1928	26	11	combined	combine	VERB
ap-1928	26	12	with	with	ADP
ap-1928	26	13	broad	broad	ADJ
ap-1928	26	14	spectral	spectral	ADJ
ap-1928	26	15	coverage	coverage	NOUN
ap-1928	26	16	(	(	PUNCT
ap-1928	26	17	100gev÷	100gev÷	NOUN
ap-1928	26	18	100tev	100tev	NUM
ap-1928	26	19	)	)	PUNCT
ap-1928	26	20	and	and	CCONJ
ap-1928	26	21	sufficient	sufficient	ADJ
ap-1928	26	22	energy	energy	NOUN
ap-1928	26	23	resolution	resolution	NOUN
ap-1928	26	24	(	(	PUNCT
ap-1928	26	25	10÷	10÷	NUM
ap-1928	26	26	20	20	NUM
ap-1928	26	27	%	%	NOUN
ap-1928	26	28	)	)	PUNCT
ap-1928	26	29	provides	provide	VERB
ap-1928	26	30	the	the	DET
ap-1928	26	31	best	good	ADJ
ap-1928	26	32	technique	technique	NOUN
ap-1928	26	33	available	available	ADJ
ap-1928	26	34	for	for	ADP
ap-1928	26	35	imaging	imaging	NOUN
ap-1928	26	36	and	and	CCONJ
ap-1928	26	37	spectroscopic	spectroscopic	ADJ
ap-1928	26	38	analysis	analysis	NOUN
ap-1928	26	39	of	of	ADP
ap-1928	26	40	the	the	DET
ap-1928	26	41	γ	γ	PROPN
ap-1928	26	42	-	-	PUNCT
ap-1928	26	43	ray	ray	NOUN
ap-1928	26	44	emission	emission	NOUN
ap-1928	26	45	.	.	PUNCT
ap-1928	27	1	spatially	spatially	ADV
ap-1928	27	2	resolved	resolve	VERB
ap-1928	27	3	spectroscopy	spectroscopy	NOUN
ap-1928	27	4	of	of	ADP
ap-1928	27	5	the	the	DET
ap-1928	27	6	often	often	ADV
ap-1928	27	7	complex	complex	ADJ
ap-1928	27	8	regions	region	NOUN
ap-1928	27	9	surrounding	surround	VERB
ap-1928	27	10	supernova	supernova	NOUN
ap-1928	27	11	remnants	remnant	NOUN
ap-1928	27	12	are	be	AUX
ap-1928	27	13	pivotal	pivotal	ADJ
ap-1928	27	14	if	if	SCONJ
ap-1928	27	15	hadronic	hadronic	ADJ
ap-1928	27	16	emission	emission	NOUN
ap-1928	27	17	from	from	ADP
ap-1928	27	18	a	a	DET
ap-1928	27	19	cosmic	cosmic	ADJ
ap-1928	27	20	-	-	PUNCT
ap-1928	27	21	ray	ray	NOUN
ap-1928	27	22	acceleration	acceleration	NOUN
ap-1928	27	23	site	site	NOUN
ap-1928	27	24	is	be	AUX
ap-1928	27	25	to	to	PART
ap-1928	27	26	be	be	AUX
ap-1928	27	27	separated	separate	VERB
ap-1928	27	28	from	from	ADP
ap-1928	27	29	contributors	contributor	NOUN
ap-1928	27	30	,	,	PUNCT
ap-1928	27	31	such	such	ADJ
ap-1928	27	32	as	as	ADP
ap-1928	27	33	pulsars	pulsar	NOUN
ap-1928	27	34	and	and	CCONJ
ap-1928	27	35	plerions	plerion	NOUN
ap-1928	27	36	.	.	PUNCT
ap-1928	28	1	equally	equally	ADV
ap-1928	28	2	important	important	ADJ
ap-1928	28	3	is	be	AUX
ap-1928	28	4	the	the	DET
ap-1928	28	5	combination	combination	NOUN
ap-1928	28	6	of	of	ADP
ap-1928	28	7	data	datum	NOUN
ap-1928	28	8	from	from	ADP
ap-1928	28	9	gev	gev	PROPN
ap-1928	28	10	γ	γ	PROPN
ap-1928	28	11	-	-	PUNCT
ap-1928	28	12	ray	ray	NOUN
ap-1928	28	13	telescopes	telescope	NOUN
ap-1928	28	14	,	,	PUNCT
ap-1928	28	15	fermi	fermi	NOUN
ap-1928	28	16	-	-	PUNCT
ap-1928	28	17	lat	lat	NOUN
ap-1928	28	18	,	,	PUNCT
ap-1928	28	19	agile	agile	ADJ
ap-1928	28	20	with	with	ADP
ap-1928	28	21	data	datum	NOUN
ap-1928	28	22	from	from	ADP
ap-1928	28	23	tev	tev	PROPN
ap-1928	28	24	telescopes	telescope	NOUN
ap-1928	28	25	;	;	PUNCT
ap-1928	28	26	together	together	ADV
ap-1928	28	27	they	they	PRON
ap-1928	28	28	cover	cover	VERB
ap-1928	28	29	5	5	NUM
ap-1928	28	30	÷	÷	NUM
ap-1928	28	31	6	6	NUM
ap-1928	28	32	orders	order	NOUN
ap-1928	28	33	of	of	ADP
ap-1928	28	34	magnitude	magnitude	NOUN
ap-1928	28	35	in	in	ADP
ap-1928	28	36	energy	energy	NOUN
ap-1928	28	37	,	,	PUNCT
ap-1928	28	38	allowing	allow	VERB
ap-1928	28	39	one	one	PRON
ap-1928	28	40	to	to	PART
ap-1928	28	41	potentially	potentially	ADV
ap-1928	28	42	distinguish	distinguish	VERB
ap-1928	28	43	spectra	spectra	NOUN
ap-1928	28	44	from	from	ADP
ap-1928	28	45	hadronic	hadronic	ADJ
ap-1928	28	46	and	and	CCONJ
ap-1928	28	47	leptonic	leptonic	ADJ
ap-1928	28	48	origin	origin	NOUN
ap-1928	28	49	based	base	VERB
ap-1928	28	50	on	on	ADP
ap-1928	28	51	spectral	spectral	ADJ
ap-1928	28	52	curvature	curvature	NOUN
ap-1928	28	53	.	.	PUNCT
ap-1928	29	1	opacity	opacity	NOUN
ap-1928	29	2	of	of	ADP
ap-1928	29	3	the	the	DET
ap-1928	29	4	universe	universe	NOUN
ap-1928	29	5	in	in	ADP
ap-1928	29	6	gamma	gamma	NOUN
ap-1928	29	7	rays	ray	NOUN
ap-1928	29	8	since	since	SCONJ
ap-1928	29	9	the	the	DET
ap-1928	29	10	1960s	1960	NOUN
ap-1928	29	11	,	,	PUNCT
ap-1928	29	12	it	it	PRON
ap-1928	29	13	has	have	AUX
ap-1928	29	14	been	be	AUX
ap-1928	29	15	known	know	VERB
ap-1928	29	16	that	that	SCONJ
ap-1928	29	17	the	the	DET
ap-1928	29	18	propagation	propagation	NOUN
ap-1928	29	19	of	of	ADP
ap-1928	29	20	γrays	γray	NOUN
ap-1928	29	21	on	on	ADP
ap-1928	29	22	cosmological	cosmological	ADJ
ap-1928	29	23	distance	distance	NOUN
ap-1928	29	24	scales	scale	NOUN
ap-1928	29	25	is	be	AUX
ap-1928	29	26	affected	affect	VERB
ap-1928	29	27	through	through	ADP
ap-1928	29	28	their	their	PRON
ap-1928	29	29	interaction	interaction	NOUN
ap-1928	29	30	with	with	ADP
ap-1928	29	31	the	the	DET
ap-1928	29	32	extragalactic	extragalactic	ADJ
ap-1928	29	33	background	background	NOUN
ap-1928	29	34	light	light	NOUN
ap-1928	29	35	(	(	PUNCT
ap-1928	29	36	ebl	ebl	PROPN
ap-1928	29	37	)	)	PUNCT
ap-1928	29	38	via	via	ADP
ap-1928	29	39	the	the	DET
ap-1928	29	40	process	process	NOUN
ap-1928	29	41	of	of	ADP
ap-1928	29	42	pair	pair	NOUN
ap-1928	29	43	production	production	NOUN
ap-1928	30	1	[	[	X
ap-1928	30	2	18	18	NUM
ap-1928	30	3	]	]	PUNCT
ap-1928	30	4	.	.	PUNCT
ap-1928	31	1	with	with	ADP
ap-1928	31	2	more	more	ADJ
ap-1928	31	3	than	than	ADP
ap-1928	31	4	3	3	NUM
ap-1928	31	5	dozen	dozen	NOUN
ap-1928	31	6	extragalactic	extragalactic	ADJ
ap-1928	31	7	sources	source	NOUN
ap-1928	31	8	detected	detect	VERB
ap-1928	31	9	at	at	ADP
ap-1928	31	10	tev	tev	PROPN
ap-1928	31	11	energies	energy	NOUN
ap-1928	31	12	up	up	ADP
ap-1928	31	13	to	to	ADP
ap-1928	31	14	a	a	DET
ap-1928	31	15	redshift	redshift	NOUN
ap-1928	31	16	of∼	of∼	ADJ
ap-1928	31	17	0.5	0.5	NUM
ap-1928	31	18	,	,	PUNCT
ap-1928	31	19	this	this	DET
ap-1928	31	20	paradigm	paradigm	NOUN
ap-1928	31	21	can	can	AUX
ap-1928	31	22	now	now	ADV
ap-1928	31	23	be	be	AUX
ap-1928	31	24	tested	test	VERB
ap-1928	31	25	and	and	CCONJ
ap-1928	31	26	used	use	VERB
ap-1928	31	27	to	to	PART
ap-1928	31	28	strongly	strongly	ADV
ap-1928	31	29	constrain	constrain	VERB
ap-1928	31	30	the	the	DET
ap-1928	31	31	intensity	intensity	NOUN
ap-1928	31	32	of	of	ADP
ap-1928	31	33	the	the	DET
ap-1928	31	34	ebl	ebl	PROPN
ap-1928	31	35	.	.	PUNCT
ap-1928	32	1	direct	direct	PROPN
ap-1928	32	2	ebl	ebl	PROPN
ap-1928	32	3	detection	detection	NOUN
ap-1928	32	4	in	in	ADP
ap-1928	32	5	the	the	DET
ap-1928	32	6	near	near	NOUN
ap-1928	32	7	-	-	PUNCT
ap-1928	32	8	ir	ir	NOUN
ap-1928	32	9	to	to	ADP
ap-1928	32	10	mid	mid	PROPN
ap-1928	32	11	-	-	PROPN
ap-1928	32	12	ir	ir	PROPN
ap-1928	32	13	is	be	AUX
ap-1928	32	14	hampered	hamper	VERB
ap-1928	32	15	by	by	ADP
ap-1928	32	16	overwhelming	overwhelming	ADJ
ap-1928	32	17	local	local	ADJ
ap-1928	32	18	foregrounds	foreground	VERB
ap-1928	32	19	from	from	ADP
ap-1928	32	20	zodiacal	zodiacal	ADJ
ap-1928	32	21	light	light	NOUN
ap-1928	32	22	in	in	ADP
ap-1928	32	23	the	the	DET
ap-1928	32	24	solar	solar	ADJ
ap-1928	32	25	system	system	NOUN
ap-1928	32	26	and	and	CCONJ
ap-1928	32	27	galactic	galactic	ADJ
ap-1928	32	28	starlight	starlight	NOUN
ap-1928	32	29	.	.	PUNCT
ap-1928	33	1	while	while	SCONJ
ap-1928	33	2	still	still	ADV
ap-1928	33	3	speculative	speculative	ADJ
ap-1928	33	4	,	,	PUNCT
ap-1928	33	5	suggestions	suggestion	NOUN
ap-1928	33	6	were	be	AUX
ap-1928	33	7	made	make	VERB
ap-1928	33	8	that	that	SCONJ
ap-1928	33	9	the	the	DET
ap-1928	33	10	propagation	propagation	NOUN
ap-1928	33	11	length	length	NOUN
ap-1928	33	12	of	of	ADP
ap-1928	33	13	γ	γ	NOUN
ap-1928	33	14	-	-	NOUN
ap-1928	33	15	rays	ray	NOUN
ap-1928	33	16	could	could	AUX
ap-1928	33	17	be	be	AUX
ap-1928	33	18	substantially	substantially	ADV
ap-1928	33	19	increased	increase	VERB
ap-1928	33	20	through	through	ADP
ap-1928	33	21	photon	photon	NOUN
ap-1928	33	22	mixing	mix	VERB
ap-1928	33	23	with	with	ADP
ap-1928	33	24	axion	axion	NOUN
ap-1928	33	25	-	-	PUNCT
ap-1928	33	26	like	like	ADJ
ap-1928	33	27	particles	particle	NOUN
ap-1928	33	28	[	[	X
ap-1928	33	29	26	26	NUM
ap-1928	33	30	]	]	PUNCT
ap-1928	33	31	.	.	PUNCT
ap-1928	34	1	those	those	PRON
ap-1928	34	2	require	require	VERB
ap-1928	34	3	new	new	ADJ
ap-1928	34	4	physical	physical	ADJ
ap-1928	34	5	processes	process	NOUN
ap-1928	34	6	not	not	PART
ap-1928	34	7	yet	yet	ADV
ap-1928	34	8	established	establish	VERB
ap-1928	34	9	experimentally	experimentally	ADV
ap-1928	34	10	or	or	CCONJ
ap-1928	34	11	observationally	observationally	ADV
ap-1928	34	12	.	.	PUNCT
ap-1928	35	1	another	another	DET
ap-1928	35	2	possibility	possibility	NOUN
ap-1928	35	3	is	be	AUX
ap-1928	35	4	given	give	VERB
ap-1928	35	5	by	by	ADP
ap-1928	35	6	blazar	blazar	NOUN
ap-1928	35	7	jets	jet	NOUN
ap-1928	35	8	co	co	ADJ
ap-1928	35	9	-	-	VERB
ap-1928	35	10	accelerating	accelerate	VERB
ap-1928	35	11	cosmic	cosmic	ADJ
ap-1928	35	12	-	-	PUNCT
ap-1928	35	13	ray	ray	NOUN
ap-1928	35	14	hadrons	hadron	NOUN
ap-1928	35	15	along	along	ADP
ap-1928	35	16	with	with	ADP
ap-1928	35	17	electrons	electron	NOUN
ap-1928	35	18	in	in	ADP
ap-1928	35	19	appreciable	appreciable	ADJ
ap-1928	35	20	amounts	amount	NOUN
ap-1928	35	21	;	;	PUNCT
ap-1928	35	22	protons	proton	NOUN
ap-1928	35	23	subsequently	subsequently	ADV
ap-1928	35	24	interact	interact	VERB
ap-1928	35	25	with	with	ADP
ap-1928	35	26	diffuse	diffuse	PROPN
ap-1928	35	27	photons	photon	NOUN
ap-1928	35	28	from	from	ADP
ap-1928	35	29	intergalactic	intergalactic	ADJ
ap-1928	35	30	radiation	radiation	NOUN
ap-1928	35	31	fields	field	NOUN
ap-1928	35	32	resulting	result	VERB
ap-1928	35	33	in	in	ADP
ap-1928	35	34	secondary	secondary	ADJ
ap-1928	35	35	photons	photon	NOUN
ap-1928	35	36	.	.	PUNCT
ap-1928	36	1	due	due	ADP
ap-1928	36	2	to	to	ADP
ap-1928	36	3	the	the	DET
ap-1928	36	4	smaller	small	ADJ
ap-1928	36	5	cross	cross	NOUN
ap-1928	36	6	-	-	NOUN
ap-1928	36	7	section	section	NOUN
ap-1928	36	8	of	of	ADP
ap-1928	36	9	the	the	DET
ap-1928	36	10	hadron	hadron	NOUN
ap-1928	36	11	-	-	PUNCT
ap-1928	36	12	photon	photon	NOUN
ap-1928	36	13	interactions	interaction	NOUN
ap-1928	36	14	compared	compare	VERB
ap-1928	36	15	to	to	ADP
ap-1928	36	16	γγ→	γγ→	PRON
ap-1928	36	17	e+e−	e+e−	PROPN
ap-1928	36	18	,	,	PUNCT
ap-1928	36	19	this	this	DET
ap-1928	36	20	process	process	NOUN
ap-1928	36	21	would	would	AUX
ap-1928	36	22	increase	increase	VERB
ap-1928	36	23	the	the	DET
ap-1928	36	24	γ	γ	PROPN
ap-1928	36	25	-	-	PUNCT
ap-1928	36	26	ray	ray	NOUN
ap-1928	36	27	horizon	horizon	NOUN
ap-1928	36	28	of	of	ADP
ap-1928	36	29	blazars	blazar	NOUN
ap-1928	36	30	to	to	ADP
ap-1928	36	31	substantially	substantially	ADV
ap-1928	36	32	larger	large	ADJ
ap-1928	36	33	distance	distance	NOUN
ap-1928	36	34	scales	scale	NOUN
ap-1928	36	35	compared	compare	VERB
ap-1928	36	36	to	to	ADP
ap-1928	36	37	primary	primary	ADJ
ap-1928	36	38	tev	tev	NOUN
ap-1928	36	39	photons	photon	NOUN
ap-1928	36	40	[	[	X
ap-1928	36	41	13	13	NUM
ap-1928	36	42	]	]	PUNCT
ap-1928	36	43	.	.	PUNCT
ap-1928	37	1	such	such	DET
ap-1928	37	2	a	a	DET
ap-1928	37	3	scenario	scenario	NOUN
ap-1928	37	4	is	be	AUX
ap-1928	37	5	attractive	attractive	ADJ
ap-1928	37	6	in	in	ADP
ap-1928	37	7	the	the	DET
ap-1928	37	8	context	context	NOUN
ap-1928	37	9	of	of	ADP
ap-1928	37	10	attributing	attribute	VERB
ap-1928	37	11	cosmic	cosmic	ADJ
ap-1928	37	12	-	-	PUNCT
ap-1928	37	13	ray	ray	NOUN
ap-1928	37	14	acceleration	acceleration	NOUN
ap-1928	37	15	beyond	beyond	ADP
ap-1928	37	16	the	the	DET
ap-1928	37	17	“	"	PUNCT
ap-1928	37	18	knee	knee	NOUN
ap-1928	37	19	”	"	PUNCT
ap-1928	37	20	in	in	ADP
ap-1928	37	21	the	the	DET
ap-1928	37	22	cosmic	cosmic	ADJ
ap-1928	37	23	-	-	PUNCT
ap-1928	37	24	ray	ray	NOUN
ap-1928	37	25	spectrum	spectrum	NOUN
ap-1928	37	26	to	to	ADP
ap-1928	37	27	relativistic	relativistic	ADJ
ap-1928	37	28	jets	jet	NOUN
ap-1928	37	29	.	.	PUNCT
ap-1928	38	1	both	both	DET
ap-1928	38	2	such	such	ADJ
ap-1928	38	3	processes	process	NOUN
ap-1928	38	4	could	could	AUX
ap-1928	38	5	in	in	ADP
ap-1928	38	6	principle	principle	ADJ
ap-1928	38	7	alter	alter	NOUN
ap-1928	38	8	/	/	SYM
ap-1928	38	9	invalidate	invalidate	VERB
ap-1928	38	10	current	current	ADJ
ap-1928	38	11	ebl	ebl	NOUN
ap-1928	38	12	constraints	constraint	NOUN
ap-1928	38	13	from	from	ADP
ap-1928	38	14	γ	γ	NOUN
ap-1928	38	15	-	-	PUNCT
ap-1928	38	16	ray	ray	NOUN
ap-1928	38	17	observations	observation	NOUN
ap-1928	38	18	.	.	PUNCT
ap-1928	39	1	however	however	ADV
ap-1928	39	2	,	,	PUNCT
ap-1928	39	3	neither	neither	DET
ap-1928	39	4	scenario	scenario	NOUN
ap-1928	39	5	–	–	PUNCT
ap-1928	39	6	photon	photon	NOUN
ap-1928	39	7	mixing	mix	VERB
ap-1928	39	8	with	with	ADP
ap-1928	39	9	an	an	DET
ap-1928	39	10	axion	axion	ADJ
ap-1928	39	11	-	-	PUNCT
ap-1928	39	12	like	like	ADJ
ap-1928	39	13	particle	particle	NOUN
ap-1928	39	14	nor	nor	CCONJ
ap-1928	39	15	the	the	DET
ap-1928	39	16	presence	presence	NOUN
ap-1928	39	17	of	of	ADP
ap-1928	39	18	intergalactic	intergalactic	ADJ
ap-1928	39	19	hadron	hadron	NOUN
ap-1928	39	20	induced	induce	VERB
ap-1928	39	21	–	–	PUNCT
ap-1928	39	22	cascades	cascade	NOUN
ap-1928	39	23	has	have	AUX
ap-1928	39	24	been	be	AUX
ap-1928	39	25	firmly	firmly	ADV
ap-1928	39	26	established	establish	VERB
ap-1928	39	27	.	.	PUNCT
ap-1928	40	1	2	2	X
ap-1928	40	2	.	.	X
ap-1928	40	3	cosmic	cosmic	ADJ
ap-1928	40	4	ray	ray	NOUN
ap-1928	40	5	origin	origin	NOUN
ap-1928	40	6	2.1	2.1	NUM
ap-1928	40	7	.	.	PUNCT
ap-1928	41	1	individual	individual	ADJ
ap-1928	41	2	supernova	supernova	NOUN
ap-1928	41	3	remnants	remnant	NOUN
ap-1928	41	4	tev	tev	PROPN
ap-1928	41	5	sources	source	NOUN
ap-1928	41	6	that	that	PRON
ap-1928	41	7	coincide	coincide	VERB
ap-1928	41	8	with	with	ADP
ap-1928	41	9	a	a	DET
ap-1928	41	10	supernova	supernova	NOUN
ap-1928	41	11	shell	shell	NOUN
ap-1928	41	12	and/or	and/or	CCONJ
ap-1928	41	13	a	a	DET
ap-1928	41	14	molecular	molecular	ADJ
ap-1928	41	15	cloud	cloud	NOUN
ap-1928	41	16	include	include	VERB
ap-1928	41	17	rxj1713	rxj1713	NOUN
ap-1928	41	18	-	-	PUNCT
ap-1928	41	19	3946	3946	NUM
ap-1928	41	20	,	,	PUNCT
ap-1928	41	21	figure	figure	NOUN
ap-1928	41	22	2	2	NUM
ap-1928	41	23	.	.	PUNCT
ap-1928	42	1	the	the	DET
ap-1928	42	2	skymap	skymap	NOUN
ap-1928	42	3	of	of	ADP
ap-1928	42	4	the	the	DET
ap-1928	42	5	region	region	NOUN
ap-1928	42	6	around	around	ADP
ap-1928	42	7	supernova	supernova	X
ap-1928	42	8	remnant	remnant	ADJ
ap-1928	42	9	rxj-1713	rxj-1713	NOUN
ap-1928	42	10	-	-	PUNCT
ap-1928	42	11	3946	3946	NUM
ap-1928	42	12	is	be	AUX
ap-1928	42	13	shown	show	VERB
ap-1928	42	14	[	[	PUNCT
ap-1928	42	15	7	7	NUM
ap-1928	42	16	]	]	PUNCT
ap-1928	42	17	.	.	PUNCT
ap-1928	43	1	the	the	DET
ap-1928	43	2	contour	contour	NOUN
ap-1928	43	3	lines	line	NOUN
ap-1928	43	4	indicate	indicate	VERB
ap-1928	43	5	x	x	NOUN
ap-1928	43	6	-	-	NOUN
ap-1928	43	7	ray	ray	NOUN
ap-1928	43	8	emission	emission	NOUN
ap-1928	43	9	at	at	ADP
ap-1928	43	10	1	1	NUM
ap-1928	43	11	÷	÷	NUM
ap-1928	43	12	3	3	NUM
ap-1928	43	13	kev	kev	NOUN
ap-1928	43	14	[	[	X
ap-1928	43	15	28	28	NUM
ap-1928	43	16	]	]	PUNCT
ap-1928	43	17	.	.	PUNCT
ap-1928	44	1	a	a	DET
ap-1928	44	2	prominent	prominent	ADJ
ap-1928	44	3	medium	medium	ADJ
ap-1928	44	4	age	age	NOUN
ap-1928	44	5	(	(	PUNCT
ap-1928	44	6	1,000	1,000	NUM
ap-1928	44	7	–	–	PUNCT
ap-1928	44	8	several	several	ADJ
ap-1928	44	9	thousand	thousand	NUM
ap-1928	44	10	years	year	NOUN
ap-1928	44	11	)	)	PUNCT
ap-1928	44	12	supernova	supernova	X
ap-1928	44	13	remnant	remnant	NOUN
ap-1928	44	14	,	,	PUNCT
ap-1928	44	15	possibly	possibly	ADV
ap-1928	44	16	associated	associate	VERB
ap-1928	44	17	with	with	ADP
ap-1928	44	18	sn393	sn393	PROPN
ap-1928	44	19	ad	ad	NOUN
ap-1928	44	20	and	and	CCONJ
ap-1928	44	21	the	the	DET
ap-1928	44	22	object	object	NOUN
ap-1928	44	23	g120.1	g120.1	PROPN
ap-1928	44	24	+	+	NOUN
ap-1928	44	25	1.4	1.4	NUM
ap-1928	44	26	,	,	PUNCT
ap-1928	44	27	the	the	DET
ap-1928	44	28	remnant	remnant	NOUN
ap-1928	44	29	from	from	ADP
ap-1928	44	30	sn1572	sn1572	PROPN
ap-1928	44	31	(	(	PUNCT
ap-1928	44	32	also	also	ADV
ap-1928	44	33	known	know	VERB
ap-1928	44	34	as	as	ADP
ap-1928	44	35	tycho	tycho	PROPN
ap-1928	44	36	’s	’s	PART
ap-1928	44	37	supernova	supernova	PROPN
ap-1928	44	38	)	)	PUNCT
ap-1928	44	39	.	.	PUNCT
ap-1928	45	1	the	the	DET
ap-1928	45	2	latter	latter	ADJ
ap-1928	45	3	was	be	AUX
ap-1928	45	4	identified	identify	VERB
ap-1928	45	5	as	as	ADP
ap-1928	45	6	a	a	DET
ap-1928	45	7	type	type	NOUN
ap-1928	45	8	ia	ia	PROPN
ap-1928	45	9	sn	sn	PROPN
ap-1928	45	10	;	;	PUNCT
ap-1928	45	11	in	in	ADP
ap-1928	45	12	the	the	DET
ap-1928	45	13	absence	absence	NOUN
ap-1928	45	14	of	of	ADP
ap-1928	45	15	any	any	DET
ap-1928	45	16	pulsar	pulsar	NOUN
ap-1928	45	17	or	or	CCONJ
ap-1928	45	18	neutron	neutron	NOUN
ap-1928	45	19	star	star	NOUN
ap-1928	45	20	,	,	PUNCT
ap-1928	45	21	this	this	DET
ap-1928	45	22	identification	identification	NOUN
ap-1928	45	23	favors	favor	VERB
ap-1928	45	24	a	a	DET
ap-1928	45	25	relatively	relatively	ADV
ap-1928	45	26	pristine	pristine	ADJ
ap-1928	45	27	environment	environment	NOUN
ap-1928	45	28	for	for	ADP
ap-1928	45	29	tycho	tycho	PROPN
ap-1928	45	30	.	.	PUNCT
ap-1928	46	1	both	both	DET
ap-1928	46	2	snrs	snrs	NOUN
ap-1928	46	3	exhibit	exhibit	VERB
ap-1928	46	4	a	a	DET
ap-1928	46	5	supernova	supernova	NOUN
ap-1928	46	6	shell	shell	NOUN
ap-1928	46	7	in	in	ADP
ap-1928	46	8	x	x	NOUN
ap-1928	46	9	-	-	NOUN
ap-1928	46	10	rays	ray	NOUN
ap-1928	46	11	,	,	PUNCT
ap-1928	46	12	and	and	CCONJ
ap-1928	46	13	both	both	PRON
ap-1928	46	14	appear	appear	VERB
ap-1928	46	15	to	to	PART
ap-1928	46	16	be	be	AUX
ap-1928	46	17	interacting	interact	VERB
ap-1928	46	18	with	with	ADP
ap-1928	46	19	a	a	DET
ap-1928	46	20	molecular	molecular	ADJ
ap-1928	46	21	cloud	cloud	NOUN
ap-1928	46	22	.	.	PUNCT
ap-1928	47	1	thus	thus	ADV
ap-1928	47	2	they	they	PRON
ap-1928	47	3	are	be	AUX
ap-1928	47	4	prime	prime	ADJ
ap-1928	47	5	candidates	candidate	NOUN
ap-1928	47	6	for	for	ADP
ap-1928	47	7	probing	probe	VERB
ap-1928	47	8	cosmic	cosmic	ADJ
ap-1928	47	9	-	-	PUNCT
ap-1928	47	10	ray	ray	NOUN
ap-1928	47	11	acceleration	acceleration	NOUN
ap-1928	47	12	and	and	CCONJ
ap-1928	47	13	the	the	DET
ap-1928	47	14	fixed	fix	VERB
ap-1928	47	15	-	-	PUNCT
ap-1928	47	16	target	target	NOUN
ap-1928	47	17	model	model	NOUN
ap-1928	47	18	for	for	ADP
ap-1928	47	19	cosmic	cosmic	ADJ
ap-1928	47	20	-	-	PUNCT
ap-1928	47	21	rays	ray	NOUN
ap-1928	47	22	producing	produce	VERB
ap-1928	47	23	γ	γ	NOUN
ap-1928	47	24	-	-	NOUN
ap-1928	47	25	rays	ray	NOUN
ap-1928	47	26	.	.	PUNCT
ap-1928	48	1	the	the	DET
ap-1928	48	2	skymap	skymap	NOUN
ap-1928	48	3	of	of	ADP
ap-1928	48	4	rxj1713	rxj1713	NOUN
ap-1928	48	5	-	-	PUNCT
ap-1928	48	6	3946	3946	NUM
ap-1928	48	7	in	in	ADP
ap-1928	48	8	tev	tev	PROPN
ap-1928	48	9	γ	γ	NOUN
ap-1928	48	10	-	-	NOUN
ap-1928	48	11	rays	ray	NOUN
ap-1928	48	12	(	(	PUNCT
ap-1928	48	13	fig	fig	NOUN
ap-1928	48	14	.	.	NOUN
ap-1928	48	15	2	2	X
ap-1928	48	16	)	)	PUNCT
ap-1928	48	17	shows	show	VERB
ap-1928	48	18	a	a	DET
ap-1928	48	19	characteristic	characteristic	ADJ
ap-1928	48	20	bright	bright	ADJ
ap-1928	48	21	shell	shell	NOUN
ap-1928	48	22	(	(	PUNCT
ap-1928	48	23	∼	∼	NOUN
ap-1928	48	24	1	1	NUM
ap-1928	48	25	°	°	NOUN
ap-1928	48	26	across	across	ADP
ap-1928	48	27	)	)	PUNCT
ap-1928	48	28	with	with	ADP
ap-1928	48	29	a	a	DET
ap-1928	48	30	similar	similar	ADJ
ap-1928	48	31	morphology	morphology	NOUN
ap-1928	48	32	to	to	ADP
ap-1928	48	33	the	the	DET
ap-1928	48	34	x	x	NOUN
ap-1928	48	35	-	-	NOUN
ap-1928	48	36	ray	ray	NOUN
ap-1928	48	37	contour	contour	NOUN
ap-1928	48	38	lines	line	NOUN
ap-1928	48	39	(	(	PUNCT
ap-1928	48	40	black	black	NOUN
ap-1928	48	41	)	)	PUNCT
ap-1928	48	42	.	.	PUNCT
ap-1928	49	1	the	the	DET
ap-1928	49	2	x	x	NOUN
ap-1928	49	3	-	-	NOUN
ap-1928	49	4	ray	ray	NOUN
ap-1928	49	5	emission	emission	NOUN
ap-1928	49	6	is	be	AUX
ap-1928	49	7	dominated	dominate	VERB
ap-1928	49	8	by	by	ADP
ap-1928	49	9	a	a	DET
ap-1928	49	10	nonthermal	nonthermal	ADJ
ap-1928	49	11	continuum	continuum	ADJ
ap-1928	49	12	suggesting	suggest	VERB
ap-1928	49	13	synchrotron	synchrotron	NOUN
ap-1928	49	14	radiation	radiation	NOUN
ap-1928	49	15	of	of	ADP
ap-1928	49	16	100tev	100tev	NUM
ap-1928	49	17	electrons	electron	NOUN
ap-1928	49	18	as	as	ADP
ap-1928	49	19	its	its	PRON
ap-1928	49	20	origin	origin	NOUN
ap-1928	49	21	[	[	X
ap-1928	49	22	28	28	NUM
ap-1928	49	23	]	]	PUNCT
ap-1928	49	24	.	.	PUNCT
ap-1928	50	1	these	these	DET
ap-1928	50	2	electrons	electron	NOUN
ap-1928	50	3	make	make	VERB
ap-1928	50	4	a	a	DET
ap-1928	50	5	guaranteed	guarantee	VERB
ap-1928	50	6	contribution	contribution	NOUN
ap-1928	50	7	to	to	ADP
ap-1928	50	8	the	the	DET
ap-1928	50	9	tev	tev	PROPN
ap-1928	50	10	γ	γ	PROPN
ap-1928	50	11	flux	flux	PROPN
ap-1928	50	12	through	through	ADP
ap-1928	50	13	inverse	inverse	NOUN
ap-1928	50	14	compton	compton	PROPN
ap-1928	50	15	scattering	scattering	NOUN
ap-1928	50	16	of	of	ADP
ap-1928	50	17	soft	soft	ADJ
ap-1928	50	18	photons	photon	NOUN
ap-1928	50	19	from	from	ADP
ap-1928	50	20	the	the	DET
ap-1928	50	21	cosmic	cosmic	ADJ
ap-1928	50	22	microwave	microwave	NOUN
ap-1928	50	23	background	background	NOUN
ap-1928	50	24	(	(	PUNCT
ap-1928	50	25	cmb	cmb	PROPN
ap-1928	50	26	)	)	PUNCT
ap-1928	50	27	.	.	PUNCT
ap-1928	51	1	while	while	SCONJ
ap-1928	51	2	not	not	PART
ap-1928	51	3	shown	show	VERB
ap-1928	51	4	in	in	ADP
ap-1928	51	5	fig	fig	NOUN
ap-1928	51	6	.	.	PUNCT
ap-1928	52	1	2	2	NUM
ap-1928	52	2	,	,	PUNCT
ap-1928	52	3	a	a	DET
ap-1928	52	4	molecular	molecular	ADJ
ap-1928	52	5	cloud	cloud	NOUN
ap-1928	52	6	located	locate	VERB
ap-1928	52	7	in	in	ADP
ap-1928	52	8	the	the	DET
ap-1928	52	9	northwestern	northwestern	ADJ
ap-1928	52	10	part	part	NOUN
ap-1928	52	11	of	of	ADP
ap-1928	52	12	the	the	DET
ap-1928	52	13	snr	snr	PROPN
ap-1928	52	14	shell	shell	NOUN
ap-1928	52	15	[	[	X
ap-1928	52	16	14	14	NUM
ap-1928	52	17	]	]	PUNCT
ap-1928	52	18	is	be	AUX
ap-1928	52	19	suggestive	suggestive	ADJ
ap-1928	52	20	of	of	ADP
ap-1928	52	21	the	the	DET
ap-1928	52	22	possibility	possibility	NOUN
ap-1928	52	23	that	that	SCONJ
ap-1928	52	24	a	a	DET
ap-1928	52	25	substantial	substantial	ADJ
ap-1928	52	26	part	part	NOUN
ap-1928	52	27	of	of	ADP
ap-1928	52	28	the	the	DET
ap-1928	52	29	tev	tev	PROPN
ap-1928	52	30	emission	emission	NOUN
ap-1928	52	31	might	might	AUX
ap-1928	52	32	originate	originate	VERB
ap-1928	52	33	from	from	ADP
ap-1928	52	34	neutral	neutral	ADJ
ap-1928	52	35	pion	pion	NOUN
ap-1928	52	36	decays	decay	NOUN
ap-1928	52	37	.	.	PUNCT
ap-1928	53	1	spectroscopy	spectroscopy	NOUN
ap-1928	53	2	could	could	AUX
ap-1928	53	3	yield	yield	VERB
ap-1928	53	4	unequivocal	unequivocal	ADJ
ap-1928	53	5	evidence	evidence	NOUN
ap-1928	53	6	for	for	ADP
ap-1928	53	7	a	a	DET
ap-1928	53	8	hadronic	hadronic	ADJ
ap-1928	53	9	component	component	NOUN
ap-1928	53	10	:	:	PUNCT
ap-1928	53	11	the	the	DET
ap-1928	53	12	γ	γ	PROPN
ap-1928	53	13	-	-	PUNCT
ap-1928	53	14	ray	ray	NOUN
ap-1928	53	15	spectrum	spectrum	NOUN
ap-1928	53	16	from	from	ADP
ap-1928	53	17	pion	pion	NOUN
ap-1928	53	18	decays	decay	NOUN
ap-1928	53	19	with	with	ADP
ap-1928	53	20	a	a	DET
ap-1928	53	21	cutoff	cutoff	NOUN
ap-1928	53	22	at	at	ADP
ap-1928	53	23	70mev	70mev	NOUN
ap-1928	53	24	,	,	PUNCT
ap-1928	53	25	along	along	ADP
ap-1928	53	26	with	with	ADP
ap-1928	53	27	a	a	DET
ap-1928	53	28	hard	hard	ADJ
ap-1928	53	29	spectrum	spectrum	NOUN
ap-1928	53	30	up	up	ADP
ap-1928	53	31	to	to	ADP
ap-1928	53	32	the	the	DET
ap-1928	53	33	maximum	maximum	ADJ
ap-1928	53	34	energy	energy	NOUN
ap-1928	53	35	(	(	PUNCT
ap-1928	53	36	which	which	PRON
ap-1928	53	37	depends	depend	VERB
ap-1928	53	38	on	on	ADP
ap-1928	53	39	age	age	NOUN
ap-1928	53	40	)	)	PUNCT
ap-1928	53	41	of	of	ADP
ap-1928	53	42	the	the	DET
ap-1928	53	43	accelerator	accelerator	NOUN
ap-1928	53	44	.	.	PUNCT
ap-1928	54	1	detailed	detailed	ADJ
ap-1928	54	2	models	model	NOUN
ap-1928	54	3	generally	generally	ADV
ap-1928	54	4	find	find	VERB
ap-1928	54	5	that	that	SCONJ
ap-1928	54	6	the	the	DET
ap-1928	54	7	curvature	curvature	NOUN
ap-1928	54	8	of	of	ADP
ap-1928	54	9	a	a	DET
ap-1928	54	10	γ	γ	NOUN
ap-1928	54	11	-	-	PUNCT
ap-1928	54	12	ray	ray	NOUN
ap-1928	54	13	spectrum	spectrum	NOUN
ap-1928	54	14	of	of	ADP
ap-1928	54	15	hadronic	hadronic	ADJ
ap-1928	54	16	origin	origin	NOUN
ap-1928	54	17	is	be	AUX
ap-1928	54	18	quite	quite	ADV
ap-1928	54	19	distinct	distinct	ADJ
ap-1928	54	20	from	from	ADP
ap-1928	54	21	an	an	DET
ap-1928	54	22	inverse	inverse	NOUN
ap-1928	54	23	compton	compton	PROPN
ap-1928	54	24	spectrum	spectrum	NOUN
ap-1928	54	25	.	.	PUNCT
ap-1928	55	1	the	the	DET
ap-1928	55	2	γ	γ	PROPN
ap-1928	55	3	-	-	PUNCT
ap-1928	55	4	ray	ray	NOUN
ap-1928	55	5	spectrum	spectrum	NOUN
ap-1928	55	6	of	of	ADP
ap-1928	55	7	rxj1713	rxj1713	NOUN
ap-1928	55	8	-	-	PUNCT
ap-1928	55	9	3946	3946	NUM
ap-1928	55	10	is	be	AUX
ap-1928	55	11	shown	show	VERB
ap-1928	55	12	in	in	ADP
ap-1928	55	13	fig	fig	NOUN
ap-1928	55	14	.	.	PUNCT
ap-1928	56	1	3	3	X
ap-1928	56	2	.	.	X
ap-1928	56	3	several	several	ADJ
ap-1928	56	4	models	model	NOUN
ap-1928	56	5	based	base	VERB
ap-1928	56	6	on	on	ADP
ap-1928	56	7	inverse	inverse	NOUN
ap-1928	56	8	compton	compton	PROPN
ap-1928	56	9	scattering	scattering	NOUN
ap-1928	56	10	of	of	ADP
ap-1928	56	11	electrons	electron	NOUN
ap-1928	56	12	are	be	AUX
ap-1928	56	13	shown	show	VERB
ap-1928	56	14	,	,	PUNCT
ap-1928	56	15	indicating	indicate	VERB
ap-1928	56	16	that	that	SCONJ
ap-1928	56	17	the	the	DET
ap-1928	56	18	data	datum	NOUN
ap-1928	56	19	are	be	AUX
ap-1928	56	20	es636	es636	NOUN
ap-1928	56	21	vol	vol	NOUN
ap-1928	56	22	.	.	PUNCT
ap-1928	57	1	53	53	NUM
ap-1928	57	2	supplement/2013	supplement/2013	ADJ
ap-1928	57	3	tev	tev	PROPN
ap-1928	57	4	gamma	gamma	NOUN
ap-1928	57	5	rays	ray	NOUN
ap-1928	57	6	:	:	PUNCT
ap-1928	57	7	observations	observation	NOUN
ap-1928	57	8	versus	versus	ADP
ap-1928	57	9	expectations	expectation	NOUN
ap-1928	57	10	&	&	CCONJ
ap-1928	57	11	theory	theory	NOUN
ap-1928	57	12	figure	figure	NOUN
ap-1928	57	13	3	3	NUM
ap-1928	57	14	.	.	PUNCT
ap-1928	58	1	the	the	DET
ap-1928	58	2	combined	combine	VERB
ap-1928	58	3	energy	energy	NOUN
ap-1928	58	4	spectra	spectra	NOUN
ap-1928	58	5	of	of	ADP
ap-1928	58	6	rxj-17133946	rxj-17133946	NOUN
ap-1928	58	7	from	from	ADP
ap-1928	58	8	fermi	fermi	NOUN
ap-1928	58	9	-	-	PUNCT
ap-1928	58	10	lat	lat	NOUN
ap-1928	58	11	and	and	CCONJ
ap-1928	58	12	hess	hess	NOUN
ap-1928	59	1	[	[	X
ap-1928	59	2	1	1	NUM
ap-1928	59	3	,	,	PUNCT
ap-1928	59	4	7	7	NUM
ap-1928	59	5	]	]	PUNCT
ap-1928	59	6	along	along	ADP
ap-1928	59	7	with	with	ADP
ap-1928	59	8	inverse	inverse	NOUN
ap-1928	59	9	compton	compton	PROPN
ap-1928	59	10	emission	emission	NOUN
ap-1928	59	11	models	model	NOUN
ap-1928	59	12	are	be	AUX
ap-1928	59	13	shown	show	VERB
ap-1928	59	14	.	.	PUNCT
ap-1928	60	1	as	as	SCONJ
ap-1928	60	2	can	can	AUX
ap-1928	60	3	be	be	AUX
ap-1928	60	4	seen	see	VERB
ap-1928	60	5	,	,	PUNCT
ap-1928	60	6	the	the	DET
ap-1928	60	7	spectrum	spectrum	NOUN
ap-1928	60	8	of	of	ADP
ap-1928	60	9	rxj-1713	rxj-1713	NOUN
ap-1928	60	10	-	-	PUNCT
ap-1928	60	11	3946	3946	NUM
ap-1928	60	12	can	can	AUX
ap-1928	60	13	be	be	AUX
ap-1928	60	14	fitted	fit	VERB
ap-1928	60	15	by	by	ADP
ap-1928	60	16	a	a	DET
ap-1928	60	17	leptonic	leptonic	ADJ
ap-1928	60	18	scenario	scenario	NOUN
ap-1928	60	19	.	.	PUNCT
ap-1928	61	1	sentially	sentially	ADV
ap-1928	61	2	in	in	ADP
ap-1928	61	3	agreement	agreement	NOUN
ap-1928	61	4	with	with	ADP
ap-1928	61	5	the	the	DET
ap-1928	61	6	observed	observed	ADJ
ap-1928	61	7	spectrum	spectrum	NOUN
ap-1928	61	8	.	.	PUNCT
ap-1928	62	1	while	while	SCONJ
ap-1928	62	2	some	some	DET
ap-1928	62	3	hadronic	hadronic	ADJ
ap-1928	62	4	contribution	contribution	NOUN
ap-1928	62	5	to	to	ADP
ap-1928	62	6	the	the	DET
ap-1928	62	7	γ	γ	PROPN
ap-1928	62	8	-	-	PUNCT
ap-1928	62	9	ray	ray	NOUN
ap-1928	62	10	spectrum	spectrum	NOUN
ap-1928	62	11	is	be	AUX
ap-1928	62	12	possible	possible	ADJ
ap-1928	62	13	,	,	PUNCT
ap-1928	62	14	inverse	inverse	ADJ
ap-1928	62	15	compton	compton	PROPN
ap-1928	62	16	radiation	radiation	NOUN
ap-1928	62	17	seems	seem	VERB
ap-1928	62	18	be	be	AUX
ap-1928	62	19	sufficient	sufficient	ADJ
ap-1928	62	20	to	to	PART
ap-1928	62	21	explain	explain	VERB
ap-1928	62	22	the	the	DET
ap-1928	62	23	data	datum	NOUN
ap-1928	62	24	.	.	PUNCT
ap-1928	63	1	long	long	ADV
ap-1928	63	2	considered	consider	VERB
ap-1928	63	3	that	that	SCONJ
ap-1928	63	4	tycho	tycho	PROPN
ap-1928	63	5	’s	’s	PART
ap-1928	63	6	snr	snr	PROPN
ap-1928	63	7	is	be	AUX
ap-1928	63	8	a	a	DET
ap-1928	63	9	prime	prime	ADJ
ap-1928	63	10	candidate	candidate	NOUN
ap-1928	63	11	for	for	ADP
ap-1928	63	12	hadron	hadron	NOUN
ap-1928	63	13	acceleration	acceleration	NOUN
ap-1928	64	1	[	[	X
ap-1928	64	2	30	30	NUM
ap-1928	64	3	]	]	PUNCT
ap-1928	64	4	.	.	PUNCT
ap-1928	65	1	while	while	SCONJ
ap-1928	65	2	distance	distance	NOUN
ap-1928	65	3	estimates	estimate	NOUN
ap-1928	65	4	of	of	ADP
ap-1928	65	5	tycho	tycho	PROPN
ap-1928	65	6	’s	’s	PART
ap-1928	65	7	snr	snr	PROPN
ap-1928	65	8	range	range	VERB
ap-1928	65	9	from	from	ADP
ap-1928	65	10	2.5÷	2.5÷	NUM
ap-1928	65	11	5	5	NUM
ap-1928	65	12	kpc	kpc	NOUN
ap-1928	65	13	,	,	PUNCT
ap-1928	65	14	its	its	PRON
ap-1928	65	15	age	age	NOUN
ap-1928	65	16	440	440	NUM
ap-1928	65	17	years	year	NOUN
ap-1928	65	18	and	and	CCONJ
ap-1928	65	19	its	its	PRON
ap-1928	65	20	type	type	NOUN
ap-1928	65	21	(	(	PUNCT
ap-1928	65	22	type	type	NOUN
ap-1928	65	23	ia	ia	PROPN
ap-1928	65	24	)	)	PUNCT
ap-1928	65	25	are	be	AUX
ap-1928	65	26	well	well	ADV
ap-1928	65	27	established	establish	VERB
ap-1928	65	28	.	.	PUNCT
ap-1928	66	1	a	a	DET
ap-1928	66	2	tev	tev	PROPN
ap-1928	66	3	γ	γ	PROPN
ap-1928	66	4	-	-	PUNCT
ap-1928	66	5	ray	ray	NOUN
ap-1928	66	6	image	image	NOUN
ap-1928	66	7	of	of	ADP
ap-1928	66	8	tycho	tycho	PROPN
ap-1928	66	9	[	[	X
ap-1928	66	10	3	3	NUM
ap-1928	66	11	]	]	PUNCT
ap-1928	66	12	is	be	AUX
ap-1928	66	13	shown	show	VERB
ap-1928	66	14	in	in	ADP
ap-1928	66	15	fig	fig	NOUN
ap-1928	66	16	.	.	PUNCT
ap-1928	67	1	4	4	NUM
ap-1928	67	2	;	;	PUNCT
ap-1928	67	3	the	the	DET
ap-1928	67	4	color	color	NOUN
ap-1928	67	5	scale	scale	NOUN
ap-1928	67	6	indicates	indicate	VERB
ap-1928	67	7	the	the	DET
ap-1928	67	8	number	number	NOUN
ap-1928	67	9	of	of	ADP
ap-1928	67	10	excess	excess	ADJ
ap-1928	67	11	γ	γ	PROPN
ap-1928	67	12	-	-	PUNCT
ap-1928	67	13	ray	ray	NOUN
ap-1928	67	14	events	event	NOUN
ap-1928	67	15	per	per	ADP
ap-1928	67	16	bin	bin	NOUN
ap-1928	67	17	,	,	PUNCT
ap-1928	67	18	the	the	DET
ap-1928	67	19	black	black	ADJ
ap-1928	67	20	lines	line	NOUN
ap-1928	67	21	represent	represent	VERB
ap-1928	67	22	the	the	DET
ap-1928	67	23	x	x	NOUN
ap-1928	67	24	-	-	NOUN
ap-1928	67	25	ray	ray	NOUN
ap-1928	67	26	contours	contours	NOUN
ap-1928	67	27	(	(	PUNCT
ap-1928	67	28	chandra	chandra	PROPN
ap-1928	67	29	acis	acis	PROPN
ap-1928	67	30	)	)	PUNCT
ap-1928	68	1	[	[	X
ap-1928	68	2	21	21	NUM
ap-1928	68	3	]	]	PUNCT
ap-1928	68	4	and	and	CCONJ
ap-1928	68	5	the	the	DET
ap-1928	68	6	magenta	magenta	NOUN
ap-1928	68	7	contour	contour	NOUN
ap-1928	68	8	lines	line	NOUN
ap-1928	68	9	correspond	correspond	VERB
ap-1928	68	10	to	to	ADP
ap-1928	68	11	12co	12co	ADJ
ap-1928	68	12	emission	emission	NOUN
ap-1928	68	13	from	from	ADP
ap-1928	68	14	a	a	DET
ap-1928	68	15	high	high	ADJ
ap-1928	68	16	resolution	resolution	NOUN
ap-1928	68	17	radio	radio	NOUN
ap-1928	68	18	survey	survey	NOUN
ap-1928	68	19	[	[	X
ap-1928	68	20	19	19	NUM
ap-1928	68	21	]	]	PUNCT
ap-1928	68	22	.	.	PUNCT
ap-1928	69	1	the	the	DET
ap-1928	69	2	tev	tev	PROPN
ap-1928	69	3	emission	emission	NOUN
ap-1928	69	4	appears	appear	VERB
ap-1928	69	5	to	to	PART
ap-1928	69	6	be	be	AUX
ap-1928	69	7	spatially	spatially	ADV
ap-1928	69	8	coincident	coincident	ADJ
ap-1928	69	9	with	with	ADP
ap-1928	69	10	the	the	DET
ap-1928	69	11	molecular	molecular	ADJ
ap-1928	69	12	cloud	cloud	NOUN
ap-1928	69	13	,	,	PUNCT
ap-1928	69	14	rather	rather	ADV
ap-1928	69	15	than	than	ADP
ap-1928	69	16	the	the	DET
ap-1928	69	17	centroid	centroid	NOUN
ap-1928	69	18	of	of	ADP
ap-1928	69	19	the	the	DET
ap-1928	69	20	x	x	NOUN
ap-1928	69	21	-	-	NOUN
ap-1928	69	22	ray	ray	NOUN
ap-1928	69	23	shell	shell	NOUN
ap-1928	69	24	.	.	PUNCT
ap-1928	70	1	this	this	PRON
ap-1928	70	2	is	be	AUX
ap-1928	70	3	what	what	PRON
ap-1928	70	4	one	one	PRON
ap-1928	70	5	would	would	AUX
ap-1928	70	6	expect	expect	VERB
ap-1928	70	7	if	if	SCONJ
ap-1928	70	8	the	the	DET
ap-1928	70	9	γ	γ	NOUN
ap-1928	70	10	-	-	NOUN
ap-1928	70	11	rays	ray	NOUN
ap-1928	70	12	were	be	AUX
ap-1928	70	13	hadronic	hadronic	ADJ
ap-1928	70	14	in	in	ADP
ap-1928	70	15	origin	origin	NOUN
ap-1928	70	16	.	.	PUNCT
ap-1928	71	1	however	however	ADV
ap-1928	71	2	,	,	PUNCT
ap-1928	71	3	note	note	VERB
ap-1928	71	4	that	that	SCONJ
ap-1928	71	5	the	the	DET
ap-1928	71	6	shell	shell	NOUN
ap-1928	71	7	-	-	PUNCT
ap-1928	71	8	type	type	NOUN
ap-1928	71	9	structure	structure	NOUN
ap-1928	71	10	of	of	ADP
ap-1928	71	11	tycho	tycho	PROPN
ap-1928	71	12	is	be	AUX
ap-1928	71	13	just	just	ADV
ap-1928	71	14	0.15	0.15	NUM
ap-1928	71	15	°	°	NOUN
ap-1928	71	16	in	in	ADP
ap-1928	71	17	diameter	diameter	NOUN
ap-1928	71	18	,	,	PUNCT
ap-1928	71	19	comparable	comparable	ADJ
ap-1928	71	20	to	to	ADP
ap-1928	71	21	the	the	DET
ap-1928	71	22	point	point	NOUN
ap-1928	71	23	spread	spread	VERB
ap-1928	71	24	function	function	NOUN
ap-1928	71	25	of	of	ADP
ap-1928	71	26	current	current	ADJ
ap-1928	71	27	generation	generation	NOUN
ap-1928	71	28	tev	tev	NOUN
ap-1928	71	29	telescopes	telescope	NOUN
ap-1928	71	30	.	.	PUNCT
ap-1928	72	1	further	further	ADJ
ap-1928	72	2	observations	observation	NOUN
ap-1928	72	3	are	be	AUX
ap-1928	72	4	required	require	VERB
ap-1928	72	5	to	to	PART
ap-1928	72	6	unambiguously	unambiguously	ADV
ap-1928	72	7	correlate	correlate	VERB
ap-1928	72	8	the	the	DET
ap-1928	72	9	tev	tev	PROPN
ap-1928	72	10	emission	emission	NOUN
ap-1928	72	11	with	with	ADP
ap-1928	72	12	the	the	DET
ap-1928	72	13	molecular	molecular	ADJ
ap-1928	72	14	cloud	cloud	NOUN
ap-1928	72	15	.	.	PUNCT
ap-1928	73	1	the	the	DET
ap-1928	73	2	flux	flux	NOUN
ap-1928	73	3	above	above	ADP
ap-1928	73	4	1tev	1tev	NUM
ap-1928	73	5	is	be	AUX
ap-1928	73	6	just	just	ADV
ap-1928	73	7	1	1	NUM
ap-1928	73	8	%	%	NOUN
ap-1928	73	9	of	of	ADP
ap-1928	73	10	the	the	DET
ap-1928	73	11	crab	crab	NOUN
ap-1928	73	12	nebula	nebula	NOUN
ap-1928	73	13	flux	flux	NOUN
ap-1928	73	14	(	(	PUNCT
ap-1928	73	15	standard	standard	ADJ
ap-1928	73	16	candle	candle	NOUN
ap-1928	73	17	in	in	ADP
ap-1928	73	18	tev	tev	PROPN
ap-1928	73	19	γ	γ	NOUN
ap-1928	73	20	-	-	NOUN
ap-1928	73	21	rays	ray	NOUN
ap-1928	73	22	)	)	PUNCT
ap-1928	73	23	,	,	PUNCT
ap-1928	73	24	therefore	therefore	ADV
ap-1928	73	25	much	much	ADV
ap-1928	73	26	improved	improved	ADJ
ap-1928	73	27	measurements	measurement	NOUN
ap-1928	73	28	with	with	ADP
ap-1928	73	29	current	current	ADJ
ap-1928	73	30	and/or	and/or	CCONJ
ap-1928	73	31	next	next	ADJ
ap-1928	73	32	generation	generation	NOUN
ap-1928	73	33	acts	act	NOUN
ap-1928	73	34	are	be	AUX
ap-1928	73	35	expected	expect	VERB
ap-1928	73	36	and	and	CCONJ
ap-1928	73	37	promise	promise	VERB
ap-1928	73	38	to	to	PART
ap-1928	73	39	resolve	resolve	VERB
ap-1928	73	40	the	the	DET
ap-1928	73	41	source	source	NOUN
ap-1928	73	42	of	of	ADP
ap-1928	73	43	tev	tev	PROPN
ap-1928	73	44	emission	emission	NOUN
ap-1928	73	45	.	.	PUNCT
ap-1928	74	1	the	the	DET
ap-1928	74	2	multi	multi	ADJ
ap-1928	74	3	-	-	ADJ
ap-1928	74	4	wavelength	wavelength	ADJ
ap-1928	74	5	spectrum	spectrum	NOUN
ap-1928	74	6	of	of	ADP
ap-1928	74	7	tycho	tycho	PROPN
ap-1928	74	8	including	include	VERB
ap-1928	74	9	radio	radio	NOUN
ap-1928	74	10	,	,	PUNCT
ap-1928	74	11	x	x	NOUN
ap-1928	74	12	-	-	NOUN
ap-1928	74	13	ray	ray	NOUN
ap-1928	74	14	,	,	PUNCT
ap-1928	74	15	fermi	fermi	NOUN
ap-1928	74	16	-	-	PUNCT
ap-1928	74	17	lat	lat	NOUN
ap-1928	74	18	and	and	CCONJ
ap-1928	74	19	veritas	verita	NOUN
ap-1928	74	20	data	datum	NOUN
ap-1928	74	21	is	be	AUX
ap-1928	74	22	shown	show	VERB
ap-1928	74	23	in	in	ADP
ap-1928	74	24	fig	fig	NOUN
ap-1928	74	25	.	.	PUNCT
ap-1928	75	1	5	5	NUM
ap-1928	75	2	along	along	ADP
ap-1928	75	3	with	with	ADP
ap-1928	75	4	several	several	ADJ
ap-1928	75	5	emission	emission	NOUN
ap-1928	75	6	models	model	NOUN
ap-1928	75	7	.	.	PUNCT
ap-1928	76	1	the	the	DET
ap-1928	76	2	synchrotron	synchrotron	NOUN
ap-1928	76	3	spectrum	spectrum	NOUN
ap-1928	76	4	in	in	ADP
ap-1928	76	5	the	the	DET
ap-1928	76	6	radio	radio	NOUN
ap-1928	76	7	–	–	PUNCT
ap-1928	76	8	x	x	X
ap-1928	76	9	-	-	NOUN
ap-1928	76	10	ray	ray	NOUN
ap-1928	76	11	provides	provide	VERB
ap-1928	76	12	an	an	DET
ap-1928	76	13	important	important	ADJ
ap-1928	76	14	constraint	constraint	NOUN
ap-1928	76	15	on	on	ADP
ap-1928	76	16	the	the	DET
ap-1928	76	17	inverse	inverse	NOUN
ap-1928	76	18	compton	compton	PROPN
ap-1928	76	19	flux	flux	NOUN
ap-1928	76	20	in	in	ADP
ap-1928	76	21	γ	γ	NOUN
ap-1928	76	22	-	-	NOUN
ap-1928	76	23	rays	ray	NOUN
ap-1928	76	24	.	.	PUNCT
ap-1928	77	1	for	for	ADP
ap-1928	77	2	a	a	DET
ap-1928	77	3	given	give	VERB
ap-1928	77	4	synchrotron	synchrotron	NOUN
ap-1928	77	5	flux	flux	NOUN
ap-1928	77	6	,	,	PUNCT
ap-1928	77	7	a	a	DET
ap-1928	77	8	strong	strong	ADJ
ap-1928	77	9	magnetic	magnetic	ADJ
ap-1928	77	10	field	field	NOUN
ap-1928	77	11	requires	require	VERB
ap-1928	77	12	a	a	DET
ap-1928	77	13	low	low	ADJ
ap-1928	77	14	electron	electron	NOUN
ap-1928	77	15	number	number	NOUN
ap-1928	77	16	density	density	NOUN
ap-1928	77	17	ne	ne	PROPN
ap-1928	77	18	and	and	CCONJ
ap-1928	77	19	thus	thus	ADV
ap-1928	77	20	a	a	DET
ap-1928	77	21	low	low	ADJ
ap-1928	77	22	inverse	inverse	NOUN
ap-1928	77	23	compton	compton	PROPN
ap-1928	77	24	emission	emission	NOUN
ap-1928	77	25	component	component	NOUN
ap-1928	77	26	in	in	ADP
ap-1928	77	27	gev÷	gev÷	PROPN
ap-1928	77	28	tev	tev	PROPN
ap-1928	77	29	γ	γ	NOUN
ap-1928	77	30	-	-	NOUN
ap-1928	77	31	rays	ray	NOUN
ap-1928	77	32	.	.	PUNCT
ap-1928	78	1	a	a	DET
ap-1928	78	2	magnetic	magnetic	ADJ
ap-1928	78	3	field	field	NOUN
ap-1928	78	4	of	of	ADP
ap-1928	78	5	∼	∼	NOUN
ap-1928	78	6	200	200	NUM
ap-1928	78	7	µg	µg	NOUN
ap-1928	78	8	in	in	ADP
ap-1928	78	9	regions	region	NOUN
ap-1928	78	10	of	of	ADP
ap-1928	78	11	the	the	DET
ap-1928	78	12	shell	shell	ADJ
ap-1928	78	13	figure	figure	NOUN
ap-1928	78	14	4	4	NUM
ap-1928	78	15	.	.	PUNCT
ap-1928	79	1	the	the	DET
ap-1928	79	2	skymap	skymap	NOUN
ap-1928	79	3	[	[	X
ap-1928	79	4	3	3	NUM
ap-1928	79	5	]	]	PUNCT
ap-1928	79	6	of	of	ADP
ap-1928	79	7	the	the	DET
ap-1928	79	8	region	region	NOUN
ap-1928	79	9	around	around	ADP
ap-1928	79	10	tycho	tycho	PROPN
ap-1928	79	11	is	be	AUX
ap-1928	79	12	shown	show	VERB
ap-1928	79	13	.	.	PUNCT
ap-1928	80	1	the	the	DET
ap-1928	80	2	black	black	PROPN
ap-1928	80	3	cross	cross	NOUN
ap-1928	80	4	marks	mark	VERB
ap-1928	80	5	the	the	DET
ap-1928	80	6	centroid	centroid	NOUN
ap-1928	80	7	of	of	ADP
ap-1928	80	8	the	the	DET
ap-1928	80	9	tev	tev	PROPN
ap-1928	80	10	emission	emission	NOUN
ap-1928	80	11	.	.	PUNCT
ap-1928	81	1	the	the	DET
ap-1928	81	2	black	black	ADJ
ap-1928	81	3	contour	contour	NOUN
ap-1928	81	4	lines	line	NOUN
ap-1928	81	5	show	show	VERB
ap-1928	81	6	the	the	DET
ap-1928	81	7	x	x	NOUN
ap-1928	81	8	-	-	NOUN
ap-1928	81	9	ray	ray	NOUN
ap-1928	81	10	emission	emission	NOUN
ap-1928	81	11	from	from	ADP
ap-1928	81	12	a	a	DET
ap-1928	81	13	chandra	chandra	PROPN
ap-1928	81	14	acis	acis	PROPN
ap-1928	81	15	exposure	exposure	NOUN
ap-1928	81	16	(	(	PUNCT
ap-1928	81	17	thin	thin	ADJ
ap-1928	81	18	black	black	ADJ
ap-1928	81	19	lines	line	NOUN
ap-1928	81	20	)	)	PUNCT
ap-1928	81	21	.	.	PUNCT
ap-1928	82	1	radio	radio	NOUN
ap-1928	82	2	contour	contour	NOUN
ap-1928	82	3	lines	line	NOUN
ap-1928	82	4	are	be	AUX
ap-1928	82	5	shown	show	VERB
ap-1928	82	6	in	in	ADP
ap-1928	82	7	magenta	magenta	NOUN
ap-1928	82	8	and	and	CCONJ
ap-1928	82	9	are	be	AUX
ap-1928	82	10	based	base	VERB
ap-1928	82	11	on	on	ADP
ap-1928	82	12	12co	12co	ADJ
ap-1928	82	13	emission	emission	NOUN
ap-1928	82	14	from	from	ADP
ap-1928	82	15	the	the	DET
ap-1928	82	16	fcrao	fcrao	PROPN
ap-1928	82	17	survey	survey	NOUN
ap-1928	82	18	.	.	PUNCT
ap-1928	83	1	was	be	AUX
ap-1928	83	2	derived	derive	VERB
ap-1928	83	3	by	by	ADP
ap-1928	83	4	cassam	cassam	PROPN
ap-1928	83	5	-	-	PUNCT
ap-1928	83	6	chenai	chenai	PROPN
ap-1928	83	7	et	et	PROPN
ap-1928	83	8	al	al	PROPN
ap-1928	83	9	.	.	PUNCT
ap-1928	84	1	[	[	X
ap-1928	84	2	9	9	NUM
ap-1928	84	3	]	]	PUNCT
ap-1928	84	4	,	,	PUNCT
ap-1928	84	5	suggesting	suggest	VERB
ap-1928	84	6	that	that	SCONJ
ap-1928	84	7	the	the	DET
ap-1928	84	8	rapid	rapid	ADJ
ap-1928	84	9	cooling	cooling	NOUN
ap-1928	84	10	of	of	ADP
ap-1928	84	11	electrons	electron	NOUN
ap-1928	84	12	in	in	ADP
ap-1928	84	13	the	the	DET
ap-1928	84	14	narrow	narrow	ADJ
ap-1928	84	15	x	x	ADJ
ap-1928	84	16	-	-	NOUN
ap-1928	84	17	ray	ray	NOUN
ap-1928	84	18	filaments	filament	NOUN
ap-1928	84	19	of	of	ADP
ap-1928	84	20	tycho	tycho	PROPN
ap-1928	84	21	is	be	AUX
ap-1928	84	22	due	due	ADJ
ap-1928	84	23	to	to	ADP
ap-1928	84	24	a	a	DET
ap-1928	84	25	strong	strong	ADJ
ap-1928	84	26	magnetic	magnetic	ADJ
ap-1928	84	27	field	field	NOUN
ap-1928	84	28	.	.	PUNCT
ap-1928	85	1	although	although	SCONJ
ap-1928	85	2	much	much	ADV
ap-1928	85	3	larger	large	ADJ
ap-1928	85	4	than	than	ADP
ap-1928	85	5	what	what	PRON
ap-1928	85	6	is	be	AUX
ap-1928	85	7	typically	typically	ADV
ap-1928	85	8	found	find	VERB
ap-1928	85	9	in	in	ADP
ap-1928	85	10	the	the	DET
ap-1928	85	11	galaxy	galaxy	NOUN
ap-1928	85	12	(	(	PUNCT
ap-1928	85	13	∼	∼	NOUN
ap-1928	85	14	µg	µg	NOUN
ap-1928	85	15	)	)	PUNCT
ap-1928	85	16	,	,	PUNCT
ap-1928	85	17	it	it	PRON
ap-1928	85	18	is	be	AUX
ap-1928	85	19	plausible	plausible	ADJ
ap-1928	85	20	since	since	SCONJ
ap-1928	85	21	magnetic	magnetic	ADJ
ap-1928	85	22	field	field	NOUN
ap-1928	85	23	amplification	amplification	NOUN
ap-1928	85	24	in	in	ADP
ap-1928	85	25	shocks	shock	NOUN
ap-1928	85	26	has	have	AUX
ap-1928	85	27	been	be	AUX
ap-1928	85	28	long	long	ADV
ap-1928	85	29	considered	consider	VERB
ap-1928	85	30	inevitable	inevitable	ADJ
ap-1928	85	31	for	for	ADP
ap-1928	85	32	cosmic	cosmic	ADJ
ap-1928	85	33	-	-	PUNCT
ap-1928	85	34	ray	ray	NOUN
ap-1928	85	35	acceleration	acceleration	NOUN
ap-1928	85	36	.	.	PUNCT
ap-1928	86	1	similarly	similarly	ADV
ap-1928	86	2	,	,	PUNCT
ap-1928	86	3	an	an	DET
ap-1928	86	4	analysis	analysis	NOUN
ap-1928	86	5	by	by	ADP
ap-1928	86	6	acciari	acciari	PRON
ap-1928	86	7	et	et	PROPN
ap-1928	86	8	al	al	PROPN
ap-1928	86	9	.	.	PUNCT
ap-1928	87	1	[	[	X
ap-1928	87	2	3	3	X
ap-1928	87	3	]	]	PUNCT
ap-1928	87	4	suggests	suggest	VERB
ap-1928	87	5	significant	significant	ADJ
ap-1928	87	6	magnetic	magnetic	ADJ
ap-1928	87	7	field	field	NOUN
ap-1928	87	8	amplification	amplification	NOUN
ap-1928	87	9	;	;	PUNCT
ap-1928	87	10	again	again	ADV
ap-1928	87	11	the	the	DET
ap-1928	87	12	large	large	ADJ
ap-1928	87	13	synchrotron	synchrotron	NOUN
ap-1928	87	14	luminosity	luminosity	NOUN
ap-1928	87	15	compared	compare	VERB
ap-1928	87	16	to	to	ADP
ap-1928	87	17	the	the	DET
ap-1928	87	18	γ	γ	PROPN
ap-1928	87	19	-	-	PUNCT
ap-1928	87	20	ray	ray	NOUN
ap-1928	87	21	luminosity	luminosity	NOUN
ap-1928	87	22	requires	require	VERB
ap-1928	87	23	significant	significant	ADJ
ap-1928	87	24	magnetic	magnetic	ADJ
ap-1928	87	25	field	field	NOUN
ap-1928	87	26	amplification	amplification	NOUN
ap-1928	87	27	;	;	PUNCT
ap-1928	87	28	a	a	DET
ap-1928	87	29	lower	lower	ADV
ap-1928	87	30	bound	bind	VERB
ap-1928	87	31	of	of	ADP
ap-1928	87	32	∼	∼	NOUN
ap-1928	87	33	78	78	NUM
ap-1928	87	34	µg	µg	ADV
ap-1928	87	35	arises	arise	VERB
ap-1928	87	36	,	,	PUNCT
ap-1928	87	37	even	even	ADV
ap-1928	87	38	if	if	SCONJ
ap-1928	87	39	γ	γ	NOUN
ap-1928	87	40	-	-	NOUN
ap-1928	87	41	rays	ray	NOUN
ap-1928	87	42	were	be	AUX
ap-1928	87	43	mostly	mostly	ADV
ap-1928	87	44	due	due	ADJ
ap-1928	87	45	to	to	ADP
ap-1928	87	46	inverse	inverse	PROPN
ap-1928	87	47	compton	compton	PROPN
ap-1928	87	48	emission	emission	NOUN
ap-1928	87	49	.	.	PUNCT
ap-1928	88	1	in	in	ADP
ap-1928	88	2	any	any	DET
ap-1928	88	3	case	case	NOUN
ap-1928	88	4	,	,	PUNCT
ap-1928	88	5	the	the	DET
ap-1928	88	6	large	large	ADJ
ap-1928	88	7	magnetic	magnetic	ADJ
ap-1928	88	8	field	field	NOUN
ap-1928	88	9	leads	lead	VERB
ap-1928	88	10	giordano	giordano	PROPN
ap-1928	88	11	et	et	PROPN
ap-1928	88	12	al	al	PROPN
ap-1928	88	13	.	.	PUNCT
ap-1928	89	1	[	[	X
ap-1928	89	2	17	17	NUM
ap-1928	89	3	]	]	PUNCT
ap-1928	89	4	to	to	PART
ap-1928	89	5	conclude	conclude	VERB
ap-1928	89	6	a	a	DET
ap-1928	89	7	low	low	ADJ
ap-1928	89	8	contribution	contribution	NOUN
ap-1928	89	9	to	to	ADP
ap-1928	89	10	the	the	DET
ap-1928	89	11	γ	γ	PROPN
ap-1928	89	12	-	-	PUNCT
ap-1928	89	13	ray	ray	NOUN
ap-1928	89	14	spectrum	spectrum	NOUN
ap-1928	89	15	assuming	assume	VERB
ap-1928	89	16	a	a	DET
ap-1928	89	17	one	one	NUM
ap-1928	89	18	-	-	PUNCT
ap-1928	89	19	zone	zone	NOUN
ap-1928	89	20	model	model	NOUN
ap-1928	89	21	.	.	PUNCT
ap-1928	90	1	fitting	fitting	PROPN
ap-1928	90	2	bremstrahlung	bremstrahlung	PROPN
ap-1928	90	3	to	to	ADP
ap-1928	90	4	the	the	DET
ap-1928	90	5	data	datum	NOUN
ap-1928	90	6	results	result	NOUN
ap-1928	90	7	in	in	ADP
ap-1928	90	8	a	a	DET
ap-1928	90	9	significant	significant	ADJ
ap-1928	90	10	problem	problem	NOUN
ap-1928	90	11	,	,	PUNCT
ap-1928	90	12	as	as	SCONJ
ap-1928	90	13	its	its	PRON
ap-1928	90	14	magnitude	magnitude	NOUN
ap-1928	90	15	depends	depend	VERB
ap-1928	90	16	on	on	ADP
ap-1928	90	17	the	the	DET
ap-1928	90	18	electron	electron	NOUN
ap-1928	90	19	number	number	NOUN
ap-1928	90	20	density	density	NOUN
ap-1928	90	21	ne	ne	PROPN
ap-1928	90	22	and	and	CCONJ
ap-1928	90	23	the	the	DET
ap-1928	90	24	ambient	ambient	ADJ
ap-1928	90	25	gas	gas	NOUN
ap-1928	90	26	density	density	NOUN
ap-1928	90	27	;	;	PUNCT
ap-1928	90	28	increasing	increase	VERB
ap-1928	90	29	ne	ne	PROPN
ap-1928	90	30	overproduces	overproduce	NOUN
ap-1928	90	31	inverse	inverse	PROPN
ap-1928	90	32	compton	compton	PROPN
ap-1928	90	33	emission	emission	NOUN
ap-1928	90	34	,	,	PUNCT
ap-1928	90	35	while	while	SCONJ
ap-1928	90	36	increasing	increase	VERB
ap-1928	90	37	the	the	DET
ap-1928	90	38	gas	gas	NOUN
ap-1928	90	39	density	density	NOUN
ap-1928	90	40	leads	lead	VERB
ap-1928	90	41	to	to	ADP
ap-1928	90	42	un	un	VERB
ap-1928	90	43	-	-	ADJ
ap-1928	90	44	typically	typically	ADV
ap-1928	90	45	high	high	ADJ
ap-1928	90	46	gas	gas	NOUN
ap-1928	90	47	densities	density	NOUN
ap-1928	90	48	.	.	PUNCT
ap-1928	91	1	thus	thus	ADV
ap-1928	91	2	the	the	DET
ap-1928	91	3	authors	author	NOUN
ap-1928	91	4	suggest	suggest	VERB
ap-1928	91	5	that	that	SCONJ
ap-1928	91	6	the	the	DET
ap-1928	91	7	gev÷	gev÷	PROPN
ap-1928	91	8	tev	tev	PROPN
ap-1928	91	9	γ	γ	PROPN
ap-1928	91	10	-	-	PUNCT
ap-1928	91	11	ray	ray	NOUN
ap-1928	91	12	spectrum	spectrum	NOUN
ap-1928	91	13	is	be	AUX
ap-1928	91	14	most	most	ADV
ap-1928	91	15	likely	likely	ADJ
ap-1928	91	16	due	due	ADJ
ap-1928	91	17	to	to	ADP
ap-1928	91	18	pion	pion	NOUN
ap-1928	91	19	decay	decay	NOUN
ap-1928	91	20	.	.	PUNCT
ap-1928	92	1	however	however	ADV
ap-1928	92	2	,	,	PUNCT
ap-1928	92	3	a	a	DET
ap-1928	92	4	recent	recent	ADJ
ap-1928	92	5	model	model	NOUN
ap-1928	92	6	brought	bring	VERB
ap-1928	92	7	forward	forward	ADP
ap-1928	92	8	by	by	ADP
ap-1928	92	9	atoyan	atoyan	PROPN
ap-1928	92	10	&	&	CCONJ
ap-1928	92	11	dermer	dermer	PROPN
ap-1928	93	1	[	[	X
ap-1928	93	2	8	8	NUM
ap-1928	93	3	]	]	PUNCT
ap-1928	93	4	deems	deem	VERB
ap-1928	93	5	single	single	ADJ
ap-1928	93	6	-	-	PUNCT
ap-1928	93	7	zone	zone	NOUN
ap-1928	93	8	models	model	NOUN
ap-1928	93	9	for	for	ADP
ap-1928	93	10	tycho	tycho	PROPN
ap-1928	93	11	unrealistic	unrealistic	ADJ
ap-1928	93	12	.	.	PUNCT
ap-1928	94	1	they	they	PRON
ap-1928	94	2	propose	propose	VERB
ap-1928	94	3	a	a	DET
ap-1928	94	4	two	two	NUM
ap-1928	94	5	-	-	PUNCT
ap-1928	94	6	zone	zone	NOUN
ap-1928	94	7	model	model	NOUN
ap-1928	94	8	that	that	PRON
ap-1928	94	9	can	can	AUX
ap-1928	94	10	well	well	ADV
ap-1928	94	11	accommodate	accommodate	VERB
ap-1928	94	12	the	the	DET
ap-1928	94	13	measured	measured	ADJ
ap-1928	94	14	spectrum	spectrum	NOUN
ap-1928	94	15	with	with	ADP
ap-1928	94	16	a	a	DET
ap-1928	94	17	combination	combination	NOUN
ap-1928	94	18	of	of	ADP
ap-1928	94	19	an	an	DET
ap-1928	94	20	inverse	inverse	NOUN
ap-1928	94	21	compton	compton	NOUN
ap-1928	94	22	and	and	CCONJ
ap-1928	94	23	a	a	DET
ap-1928	94	24	bremsstrahlung	bremsstrahlung	ADJ
ap-1928	94	25	component	component	NOUN
ap-1928	94	26	.	.	PUNCT
ap-1928	95	1	further	further	ADJ
ap-1928	95	2	observations	observation	NOUN
ap-1928	95	3	are	be	AUX
ap-1928	95	4	necessary	necessary	ADJ
ap-1928	95	5	to	to	PART
ap-1928	95	6	address	address	VERB
ap-1928	95	7	these	these	DET
ap-1928	95	8	objections	objection	NOUN
ap-1928	95	9	and	and	CCONJ
ap-1928	95	10	to	to	PART
ap-1928	95	11	pinpoint	pinpoint	VERB
ap-1928	95	12	the	the	DET
ap-1928	95	13	exact	exact	ADJ
ap-1928	95	14	location	location	NOUN
ap-1928	95	15	of	of	ADP
ap-1928	95	16	the	the	DET
ap-1928	95	17	gev÷tev	gev÷tev	NOUN
ap-1928	95	18	emission	emission	NOUN
ap-1928	95	19	,	,	PUNCT
ap-1928	95	20	and	and	CCONJ
ap-1928	95	21	spectral	spectral	ADJ
ap-1928	95	22	measurements	measurement	NOUN
ap-1928	95	23	to	to	PART
ap-1928	95	24	improve	improve	VERB
ap-1928	95	25	upon	upon	SCONJ
ap-1928	95	26	statistical	statistical	ADJ
ap-1928	95	27	uncertainties	uncertainty	NOUN
ap-1928	95	28	of	of	ADP
ap-1928	95	29	the	the	DET
ap-1928	95	30	energy	energy	NOUN
ap-1928	95	31	spectrum	spectrum	NOUN
ap-1928	95	32	between	between	ADP
ap-1928	95	33	400mev	400mev	NUM
ap-1928	95	34	and	and	CCONJ
ap-1928	95	35	10tev	10tev	NUM
ap-1928	95	36	.	.	PUNCT
ap-1928	96	1	the	the	DET
ap-1928	96	2	γ	γ	PROPN
ap-1928	96	3	-	-	PUNCT
ap-1928	96	4	ray	ray	NOUN
ap-1928	96	5	emission	emission	NOUN
ap-1928	96	6	from	from	ADP
ap-1928	96	7	tycho	tycho	PROPN
ap-1928	96	8	’s	’s	PART
ap-1928	96	9	snr	snr	PROPN
ap-1928	96	10	appears	appear	VERB
ap-1928	96	11	to	to	PART
ap-1928	96	12	have	have	VERB
ap-1928	96	13	all	all	DET
ap-1928	96	14	the	the	DET
ap-1928	96	15	signs	sign	NOUN
ap-1928	96	16	of	of	ADP
ap-1928	96	17	a	a	DET
ap-1928	96	18	hadronic	hadronic	ADJ
ap-1928	96	19	accelerator	accelerator	NOUN
ap-1928	96	20	;	;	PUNCT
ap-1928	96	21	a	a	DET
ap-1928	96	22	smoking	smoking	NOUN
ap-1928	96	23	gun	gun	NOUN
ap-1928	96	24	637	637	NUM
ap-1928	96	25	frank	frank	PROPN
ap-1928	96	26	krennrich	krennrich	PROPN
ap-1928	96	27	acta	acta	PROPN
ap-1928	96	28	polytechnica	polytechnica	PROPN
ap-1928	96	29	figure	figure	NOUN
ap-1928	96	30	5	5	NUM
ap-1928	96	31	.	.	PUNCT
ap-1928	97	1	the	the	DET
ap-1928	97	2	broadband	broadband	NOUN
ap-1928	97	3	energy	energy	NOUN
ap-1928	97	4	spectrum	spectrum	NOUN
ap-1928	97	5	of	of	ADP
ap-1928	97	6	tycho	tycho	PROPN
ap-1928	97	7	is	be	AUX
ap-1928	97	8	shown	show	VERB
ap-1928	97	9	including	include	VERB
ap-1928	97	10	radio	radio	NOUN
ap-1928	97	11	data	datum	NOUN
ap-1928	97	12	,	,	PUNCT
ap-1928	97	13	x	x	NOUN
ap-1928	97	14	-	-	NOUN
ap-1928	97	15	ray	ray	NOUN
ap-1928	97	16	data	datum	NOUN
ap-1928	97	17	(	(	PUNCT
ap-1928	97	18	suzaku	suzaku	PROPN
ap-1928	97	19	)	)	PUNCT
ap-1928	97	20	and	and	CCONJ
ap-1928	97	21	γ	γ	NOUN
ap-1928	97	22	-	-	NOUN
ap-1928	97	23	data	datum	NOUN
ap-1928	97	24	from	from	ADP
ap-1928	97	25	the	the	DET
ap-1928	97	26	fermi	fermi	NOUN
ap-1928	97	27	-	-	PUNCT
ap-1928	97	28	lat	lat	NOUN
ap-1928	97	29	and	and	CCONJ
ap-1928	97	30	from	from	ADP
ap-1928	97	31	veritas	verita	NOUN
ap-1928	97	32	,	,	PUNCT
ap-1928	97	33	for	for	ADP
ap-1928	97	34	details	detail	NOUN
ap-1928	97	35	and	and	CCONJ
ap-1928	97	36	references	reference	NOUN
ap-1928	97	37	see	see	VERB
ap-1928	97	38	[	[	X
ap-1928	97	39	17	17	NUM
ap-1928	97	40	]	]	PUNCT
ap-1928	97	41	.	.	PUNCT
ap-1928	98	1	signature	signature	NOUN
ap-1928	98	2	would	would	AUX
ap-1928	98	3	be	be	AUX
ap-1928	98	4	the	the	DET
ap-1928	98	5	detection	detection	NOUN
ap-1928	98	6	of	of	ADP
ap-1928	98	7	a	a	DET
ap-1928	98	8	characteristic	characteristic	ADJ
ap-1928	98	9	cutoff	cutoff	NOUN
ap-1928	98	10	at	at	ADP
ap-1928	98	11	70mev	70mev	NOUN
ap-1928	98	12	,	,	PUNCT
ap-1928	98	13	which	which	PRON
ap-1928	98	14	might	might	AUX
ap-1928	98	15	be	be	AUX
ap-1928	98	16	possible	possible	ADJ
ap-1928	98	17	with	with	ADP
ap-1928	98	18	the	the	DET
ap-1928	98	19	fermi	fermi	NOUN
ap-1928	98	20	-	-	PUNCT
ap-1928	98	21	lat	lat	NOUN
ap-1928	98	22	and/or	and/or	CCONJ
ap-1928	98	23	with	with	ADP
ap-1928	98	24	the	the	DET
ap-1928	98	25	agile	agile	ADJ
ap-1928	98	26	satellite	satellite	NOUN
ap-1928	98	27	.	.	PUNCT
ap-1928	99	1	2.2	2.2	NUM
ap-1928	99	2	.	.	PUNCT
ap-1928	100	1	starburst	starburst	PROPN
ap-1928	100	2	galaxies	galaxy	NOUN
ap-1928	100	3	particle	particle	NOUN
ap-1928	100	4	acceleration	acceleration	NOUN
ap-1928	100	5	up	up	ADP
ap-1928	100	6	to	to	ADP
ap-1928	100	7	100tev	100tev	NUM
ap-1928	100	8	has	have	AUX
ap-1928	100	9	been	be	AUX
ap-1928	100	10	demonstrated	demonstrate	VERB
ap-1928	100	11	in	in	ADP
ap-1928	100	12	galactic	galactic	ADJ
ap-1928	100	13	snrs	snrs	NOUN
ap-1928	100	14	.	.	PUNCT
ap-1928	101	1	however	however	ADV
ap-1928	101	2	,	,	PUNCT
ap-1928	101	3	observations	observation	NOUN
ap-1928	101	4	have	have	AUX
ap-1928	101	5	so	so	ADV
ap-1928	101	6	far	far	ADV
ap-1928	101	7	failed	fail	VERB
ap-1928	101	8	to	to	PART
ap-1928	101	9	provide	provide	VERB
ap-1928	101	10	unambiguous	unambiguous	ADJ
ap-1928	101	11	proof	proof	NOUN
ap-1928	101	12	for	for	ADP
ap-1928	101	13	hadronic	hadronic	ADJ
ap-1928	101	14	cosmic	cosmic	ADJ
ap-1928	101	15	-	-	PUNCT
ap-1928	101	16	ray	ray	NOUN
ap-1928	101	17	acceleration	acceleration	NOUN
ap-1928	101	18	in	in	ADP
ap-1928	101	19	any	any	DET
ap-1928	101	20	single	single	ADJ
ap-1928	101	21	γ	γ	PROPN
ap-1928	101	22	-	-	PUNCT
ap-1928	101	23	ray	ray	NOUN
ap-1928	101	24	source	source	NOUN
ap-1928	101	25	.	.	PUNCT
ap-1928	102	1	despite	despite	SCONJ
ap-1928	102	2	the	the	DET
ap-1928	102	3	tremendous	tremendous	ADJ
ap-1928	102	4	observational	observational	ADJ
ap-1928	102	5	progress	progress	NOUN
ap-1928	102	6	made	make	VERB
ap-1928	102	7	over	over	ADP
ap-1928	102	8	the	the	DET
ap-1928	102	9	last	last	ADJ
ap-1928	102	10	decade	decade	NOUN
ap-1928	102	11	,	,	PUNCT
ap-1928	102	12	the	the	DET
ap-1928	102	13	question	question	NOUN
ap-1928	102	14	as	as	ADP
ap-1928	102	15	to	to	ADP
ap-1928	102	16	whether	whether	SCONJ
ap-1928	102	17	or	or	CCONJ
ap-1928	102	18	not	not	PART
ap-1928	102	19	snrs	snrs	VERB
ap-1928	102	20	produce	produce	VERB
ap-1928	102	21	the	the	DET
ap-1928	102	22	bulk	bulk	NOUN
ap-1928	102	23	of	of	ADP
ap-1928	102	24	cosmic	cosmic	ADJ
ap-1928	102	25	rays	ray	NOUN
ap-1928	102	26	in	in	ADP
ap-1928	102	27	our	our	PRON
ap-1928	102	28	galaxy	galaxy	NOUN
ap-1928	102	29	remains	remain	VERB
ap-1928	102	30	open	open	ADJ
ap-1928	102	31	.	.	PUNCT
ap-1928	103	1	in	in	ADP
ap-1928	103	2	fact	fact	NOUN
ap-1928	103	3	,	,	PUNCT
ap-1928	103	4	a	a	DET
ap-1928	103	5	path	path	NOUN
ap-1928	103	6	towards	towards	ADP
ap-1928	103	7	solving	solve	VERB
ap-1928	103	8	this	this	DET
ap-1928	103	9	question	question	NOUN
ap-1928	103	10	requires	require	VERB
ap-1928	103	11	a	a	DET
ap-1928	103	12	census	census	NOUN
ap-1928	103	13	of	of	ADP
ap-1928	103	14	the	the	DET
ap-1928	103	15	large	large	ADJ
ap-1928	103	16	galactic	galactic	ADJ
ap-1928	103	17	population	population	NOUN
ap-1928	103	18	of	of	ADP
ap-1928	103	19	snrs	snrs	NOUN
ap-1928	103	20	,	,	PUNCT
ap-1928	103	21	to	to	PART
ap-1928	103	22	establish	establish	VERB
ap-1928	103	23	their	their	PRON
ap-1928	103	24	dominance	dominance	NOUN
ap-1928	103	25	in	in	ADP
ap-1928	103	26	accelerating	accelerate	VERB
ap-1928	103	27	cosmic	cosmic	ADJ
ap-1928	103	28	rays	ray	NOUN
ap-1928	103	29	.	.	PUNCT
ap-1928	104	1	this	this	PRON
ap-1928	104	2	will	will	AUX
ap-1928	104	3	only	only	ADV
ap-1928	104	4	become	become	VERB
ap-1928	104	5	possible	possible	ADJ
ap-1928	104	6	with	with	ADP
ap-1928	104	7	a	a	DET
ap-1928	104	8	next	next	ADJ
ap-1928	104	9	generation	generation	NOUN
ap-1928	104	10	observatory	observatory	NOUN
ap-1928	104	11	such	such	ADJ
ap-1928	104	12	as	as	ADP
ap-1928	104	13	cta	cta	PROPN
ap-1928	104	14	[	[	X
ap-1928	104	15	5	5	NUM
ap-1928	104	16	]	]	PUNCT
ap-1928	104	17	.	.	PUNCT
ap-1928	105	1	starburst	starburst	PROPN
ap-1928	105	2	(	(	PUNCT
ap-1928	105	3	sb	sb	NOUN
ap-1928	105	4	)	)	PUNCT
ap-1928	105	5	galaxies	galaxy	NOUN
ap-1928	105	6	offer	offer	VERB
ap-1928	105	7	a	a	DET
ap-1928	105	8	complementary	complementary	ADJ
ap-1928	105	9	“	"	PUNCT
ap-1928	105	10	laboratory	laboratory	NOUN
ap-1928	105	11	”	"	PUNCT
ap-1928	105	12	for	for	ADP
ap-1928	105	13	probing	probe	VERB
ap-1928	105	14	the	the	DET
ap-1928	105	15	role	role	NOUN
ap-1928	105	16	of	of	ADP
ap-1928	105	17	snrs	snrs	NOUN
ap-1928	105	18	as	as	ADP
ap-1928	105	19	cosmic	cosmic	ADJ
ap-1928	105	20	-	-	PUNCT
ap-1928	105	21	ray	ray	NOUN
ap-1928	105	22	accelerators	accelerator	NOUN
ap-1928	105	23	;	;	PUNCT
ap-1928	105	24	γ	γ	X
ap-1928	105	25	-	-	PUNCT
ap-1928	105	26	ray	ray	NOUN
ap-1928	105	27	emission	emission	NOUN
ap-1928	105	28	from	from	ADP
ap-1928	105	29	an	an	DET
ap-1928	105	30	sb	sb	PROPN
ap-1928	105	31	galaxy	galaxy	PROPN
ap-1928	105	32	provides	provide	VERB
ap-1928	105	33	a	a	DET
ap-1928	105	34	calorimetric	calorimetric	ADJ
ap-1928	105	35	measure	measure	NOUN
ap-1928	105	36	of	of	ADP
ap-1928	105	37	the	the	DET
ap-1928	105	38	cosmic	cosmic	ADJ
ap-1928	105	39	-	-	PUNCT
ap-1928	105	40	ray	ray	NOUN
ap-1928	105	41	density	density	NOUN
ap-1928	105	42	in	in	ADP
ap-1928	105	43	the	the	DET
ap-1928	105	44	star	star	NOUN
ap-1928	105	45	-	-	PUNCT
ap-1928	105	46	forming	form	VERB
ap-1928	105	47	region	region	NOUN
ap-1928	105	48	and	and	CCONJ
ap-1928	105	49	can	can	AUX
ap-1928	105	50	be	be	AUX
ap-1928	105	51	used	use	VERB
ap-1928	105	52	to	to	PART
ap-1928	105	53	establish	establish	VERB
ap-1928	105	54	the	the	DET
ap-1928	105	55	connection	connection	NOUN
ap-1928	105	56	between	between	ADP
ap-1928	105	57	star	star	NOUN
ap-1928	105	58	formation	formation	NOUN
ap-1928	105	59	(	(	PUNCT
ap-1928	105	60	e.g.	e.g.	ADV
ap-1928	105	61	,	,	PUNCT
ap-1928	105	62	snrs	snrs	NOUN
ap-1928	105	63	)	)	PUNCT
ap-1928	105	64	and	and	CCONJ
ap-1928	105	65	cosmic	cosmic	ADJ
ap-1928	105	66	-	-	PUNCT
ap-1928	105	67	ray	ray	NOUN
ap-1928	105	68	origin	origin	NOUN
ap-1928	105	69	.	.	PUNCT
ap-1928	106	1	a	a	DET
ap-1928	106	2	high	high	ADJ
ap-1928	106	3	star	star	NOUN
ap-1928	106	4	formation	formation	NOUN
ap-1928	106	5	rate	rate	NOUN
ap-1928	106	6	in	in	ADP
ap-1928	106	7	sb	sb	PROPN
ap-1928	106	8	galaxies	galaxies	PROPN
ap-1928	106	9	results	result	VERB
ap-1928	106	10	in	in	ADP
ap-1928	106	11	a	a	DET
ap-1928	106	12	large	large	ADJ
ap-1928	106	13	population	population	NOUN
ap-1928	106	14	of	of	ADP
ap-1928	106	15	massive	massive	ADJ
ap-1928	106	16	young	young	ADJ
ap-1928	106	17	stars	star	NOUN
ap-1928	106	18	and	and	CCONJ
ap-1928	106	19	consequently	consequently	ADV
ap-1928	106	20	high	high	ADJ
ap-1928	106	21	sn	sn	PROPN
ap-1928	106	22	rate	rate	NOUN
ap-1928	106	23	(	(	PUNCT
ap-1928	106	24	30	30	NUM
ap-1928	106	25	times	time	NOUN
ap-1928	106	26	higher	high	ADJ
ap-1928	106	27	than	than	ADP
ap-1928	106	28	in	in	ADP
ap-1928	106	29	the	the	DET
ap-1928	106	30	milky	milky	ADJ
ap-1928	106	31	way	way	NOUN
ap-1928	106	32	)	)	PUNCT
ap-1928	106	33	.	.	PUNCT
ap-1928	107	1	combined	combine	VERB
ap-1928	107	2	with	with	ADP
ap-1928	107	3	a	a	DET
ap-1928	107	4	relatively	relatively	ADV
ap-1928	107	5	high	high	ADJ
ap-1928	107	6	gas	gas	NOUN
ap-1928	107	7	density	density	NOUN
ap-1928	107	8	,	,	PUNCT
ap-1928	107	9	the	the	DET
ap-1928	107	10	swath	swath	NOUN
ap-1928	107	11	of	of	ADP
ap-1928	107	12	young	young	ADJ
ap-1928	107	13	snrs	snrs	NOUN
ap-1928	107	14	provides	provide	VERB
ap-1928	107	15	a	a	DET
ap-1928	107	16	promising	promising	ADJ
ap-1928	107	17	opportunity	opportunity	NOUN
ap-1928	107	18	to	to	PART
ap-1928	107	19	detect	detect	VERB
ap-1928	107	20	γ	γ	NOUN
ap-1928	107	21	-	-	NOUN
ap-1928	107	22	rays	ray	NOUN
ap-1928	107	23	from	from	ADP
ap-1928	107	24	pion	pion	NOUN
ap-1928	107	25	decays	decay	NOUN
ap-1928	107	26	.	.	PUNCT
ap-1928	108	1	despite	despite	SCONJ
ap-1928	108	2	its	its	PRON
ap-1928	108	3	large	large	ADJ
ap-1928	108	4	distance	distance	NOUN
ap-1928	108	5	(	(	PUNCT
ap-1928	108	6	3.6mpc	3.6mpc	NUM
ap-1928	108	7	)	)	PUNCT
ap-1928	108	8	,	,	PUNCT
ap-1928	108	9	m82	m82	PROPN
ap-1928	108	10	,	,	PUNCT
ap-1928	108	11	with	with	ADP
ap-1928	108	12	a	a	DET
ap-1928	108	13	10	10	NUM
ap-1928	108	14	times	time	NOUN
ap-1928	108	15	higher	high	ADJ
ap-1928	108	16	star	star	NOUN
ap-1928	108	17	formation	formation	NOUN
ap-1928	108	18	rate	rate	NOUN
ap-1928	108	19	and	and	CCONJ
ap-1928	108	20	higher	high	ADJ
ap-1928	108	21	gas	gas	NOUN
ap-1928	108	22	density	density	NOUN
ap-1928	108	23	compared	compare	VERB
ap-1928	108	24	to	to	ADP
ap-1928	108	25	the	the	DET
ap-1928	108	26	milky	milky	ADJ
ap-1928	108	27	way	way	NOUN
ap-1928	108	28	,	,	PUNCT
ap-1928	108	29	was	be	AUX
ap-1928	108	30	deemed	deem	VERB
ap-1928	108	31	detectable	detectable	ADJ
ap-1928	108	32	[	[	X
ap-1928	108	33	29	29	NUM
ap-1928	108	34	]	]	PUNCT
ap-1928	108	35	in	in	ADP
ap-1928	108	36	γ	γ	NOUN
ap-1928	108	37	-	-	NOUN
ap-1928	108	38	rays	ray	NOUN
ap-1928	108	39	with	with	ADP
ap-1928	108	40	current	current	ADJ
ap-1928	108	41	generation	generation	NOUN
ap-1928	108	42	of	of	ADP
ap-1928	108	43	acts	act	NOUN
ap-1928	108	44	.	.	PUNCT
ap-1928	109	1	the	the	DET
ap-1928	109	2	starburst	starburst	NOUN
ap-1928	109	3	region	region	NOUN
ap-1928	109	4	in	in	ADP
ap-1928	109	5	m82	m82	PROPN
ap-1928	109	6	extends	extend	VERB
ap-1928	109	7	several	several	ADJ
ap-1928	109	8	100	100	NUM
ap-1928	109	9	pc	pc	NOUN
ap-1928	109	10	across	across	ADV
ap-1928	109	11	,	,	PUNCT
ap-1928	109	12	therefore	therefore	ADV
ap-1928	109	13	the	the	DET
ap-1928	109	14	actual	actual	ADJ
ap-1928	109	15	region	region	NOUN
ap-1928	109	16	from	from	ADP
ap-1928	109	17	which	which	PRON
ap-1928	109	18	γ	γ	PROPN
ap-1928	109	19	-	-	PUNCT
ap-1928	109	20	ray	ray	NOUN
ap-1928	109	21	emission	emission	NOUN
ap-1928	109	22	is	be	AUX
ap-1928	109	23	expected	expect	VERB
ap-1928	109	24	is	be	AUX
ap-1928	109	25	below	below	ADP
ap-1928	109	26	the	the	DET
ap-1928	109	27	angular	angular	ADJ
ap-1928	109	28	resolution	resolution	NOUN
ap-1928	109	29	of	of	ADP
ap-1928	109	30	acts	act	NOUN
ap-1928	109	31	.	.	PUNCT
ap-1928	110	1	figure	figure	NOUN
ap-1928	110	2	6	6	NUM
ap-1928	110	3	shows	show	VERB
ap-1928	110	4	a	a	DET
ap-1928	110	5	γ	γ	PROPN
ap-1928	110	6	-	-	PUNCT
ap-1928	110	7	ray	ray	NOUN
ap-1928	110	8	point	point	NOUN
ap-1928	110	9	source	source	NOUN
ap-1928	110	10	from	from	ADP
ap-1928	110	11	the	the	DET
ap-1928	110	12	direction	direction	NOUN
ap-1928	110	13	of	of	ADP
ap-1928	110	14	m82,discovered	m82,discovere	VERB
ap-1928	110	15	by	by	ADP
ap-1928	110	16	veritas	verita	NOUN
ap-1928	110	17	[	[	X
ap-1928	110	18	2	2	NUM
ap-1928	110	19	]	]	PUNCT
ap-1928	110	20	.	.	PUNCT
ap-1928	111	1	a	a	DET
ap-1928	111	2	weak	weak	ADJ
ap-1928	111	3	flux	flux	NOUN
ap-1928	111	4	of	of	ADP
ap-1928	111	5	0.9	0.9	NUM
ap-1928	111	6	%	%	NOUN
ap-1928	111	7	of	of	ADP
ap-1928	111	8	the	the	DET
ap-1928	111	9	crab	crab	NOUN
ap-1928	111	10	at	at	ADP
ap-1928	111	11	700gev	700gev	NUM
ap-1928	111	12	is	be	AUX
ap-1928	111	13	close	close	ADJ
ap-1928	111	14	to	to	ADP
ap-1928	111	15	the	the	DET
ap-1928	111	16	figure	figure	NOUN
ap-1928	111	17	6	6	NUM
ap-1928	111	18	.	.	PUNCT
ap-1928	112	1	the	the	DET
ap-1928	112	2	γ	γ	PROPN
ap-1928	112	3	-	-	PUNCT
ap-1928	112	4	ray	ray	NOUN
ap-1928	112	5	image	image	NOUN
ap-1928	112	6	of	of	ADP
ap-1928	112	7	the	the	DET
ap-1928	112	8	m82	m82	NOUN
ap-1928	112	9	region	region	NOUN
ap-1928	112	10	is	be	AUX
ap-1928	112	11	shown	show	VERB
ap-1928	112	12	at	at	ADP
ap-1928	112	13	energies	energy	NOUN
ap-1928	112	14	above	above	ADP
ap-1928	112	15	700gev	700gev	NUM
ap-1928	112	16	.	.	PUNCT
ap-1928	113	1	the	the	DET
ap-1928	113	2	sky	sky	NOUN
ap-1928	113	3	map	map	NOUN
ap-1928	113	4	shows	show	VERB
ap-1928	113	5	the	the	DET
ap-1928	113	6	measured	measured	ADJ
ap-1928	113	7	excess	excess	ADJ
ap-1928	113	8	(	(	PUNCT
ap-1928	113	9	colour	colour	NOUN
ap-1928	113	10	-	-	PUNCT
ap-1928	113	11	scale	scale	NOUN
ap-1928	113	12	)	)	PUNCT
ap-1928	113	13	of	of	ADP
ap-1928	113	14	γ	γ	PROPN
ap-1928	113	15	-	-	PUNCT
ap-1928	113	16	ray	ray	NOUN
ap-1928	113	17	-	-	PUNCT
ap-1928	113	18	like	like	ADJ
ap-1928	113	19	events	event	NOUN
ap-1928	113	20	above	above	ADP
ap-1928	113	21	the	the	DET
ap-1928	113	22	estimated	estimate	VERB
ap-1928	113	23	background	background	NOUN
ap-1928	113	24	.	.	PUNCT
ap-1928	114	1	figure	figure	VERB
ap-1928	114	2	7	7	NUM
ap-1928	114	3	.	.	PUNCT
ap-1928	115	1	the	the	DET
ap-1928	115	2	γ	γ	PROPN
ap-1928	115	3	-	-	PUNCT
ap-1928	115	4	ray	ray	NOUN
ap-1928	115	5	spectrum	spectrum	NOUN
ap-1928	115	6	[	[	X
ap-1928	115	7	27	27	NUM
ap-1928	115	8	]	]	PUNCT
ap-1928	115	9	of	of	ADP
ap-1928	115	10	the	the	DET
ap-1928	115	11	starburst	starburst	NOUN
ap-1928	115	12	galaxy	galaxy	NOUN
ap-1928	115	13	m82	m82	PROPN
ap-1928	115	14	region	region	PROPN
ap-1928	115	15	is	be	AUX
ap-1928	115	16	shown	show	VERB
ap-1928	115	17	as	as	SCONJ
ap-1928	115	18	measured	measure	VERB
ap-1928	115	19	by	by	ADP
ap-1928	115	20	the	the	DET
ap-1928	115	21	fermilat	fermilat	ADJ
ap-1928	115	22	and	and	CCONJ
ap-1928	115	23	veritas	verita	NOUN
ap-1928	115	24	observatory	observatory	ADJ
ap-1928	115	25	and	and	CCONJ
ap-1928	115	26	are	be	AUX
ap-1928	115	27	compared	compare	VERB
ap-1928	115	28	to	to	ADP
ap-1928	115	29	theoretical	theoretical	ADJ
ap-1928	115	30	predictions	prediction	NOUN
ap-1928	115	31	.	.	PUNCT
ap-1928	116	1	predicted	predict	VERB
ap-1928	116	2	flux	flux	NOUN
ap-1928	116	3	.	.	PUNCT
ap-1928	117	1	similarly	similarly	ADV
ap-1928	117	2	,	,	PUNCT
ap-1928	117	3	the	the	DET
ap-1928	117	4	sb	sb	PROPN
ap-1928	117	5	galaxy	galaxy	PROPN
ap-1928	117	6	ngc253	ngc253	PROPN
ap-1928	117	7	detected	detect	VERB
ap-1928	117	8	by	by	ADP
ap-1928	117	9	hess	hess	NOUN
ap-1928	117	10	[	[	X
ap-1928	117	11	4	4	X
ap-1928	117	12	]	]	PUNCT
ap-1928	117	13	shows	show	VERB
ap-1928	117	14	a	a	DET
ap-1928	117	15	small	small	ADJ
ap-1928	117	16	flux	flux	NOUN
ap-1928	117	17	close	close	ADJ
ap-1928	117	18	to	to	ADP
ap-1928	117	19	the	the	DET
ap-1928	117	20	expected	expect	VERB
ap-1928	117	21	level	level	NOUN
ap-1928	117	22	of	of	ADP
ap-1928	117	23	emission	emission	NOUN
ap-1928	117	24	.	.	PUNCT
ap-1928	118	1	the	the	DET
ap-1928	118	2	gev÷tev	gev÷tev	NOUN
ap-1928	118	3	spectrum	spectrum	NOUN
ap-1928	118	4	of	of	ADP
ap-1928	118	5	m82	m82	PROPN
ap-1928	118	6	is	be	AUX
ap-1928	118	7	shown	show	VERB
ap-1928	118	8	in	in	ADP
ap-1928	118	9	fig	fig	NOUN
ap-1928	118	10	.	.	PUNCT
ap-1928	119	1	7	7	X
ap-1928	119	2	.	.	X
ap-1928	119	3	the	the	DET
ap-1928	119	4	fermi	fermi	NOUN
ap-1928	119	5	spectrum	spectrum	VERB
ap-1928	119	6	between	between	ADP
ap-1928	119	7	0.1÷	0.1÷	NOUN
ap-1928	119	8	3gev	3gev	NUM
ap-1928	119	9	is	be	AUX
ap-1928	119	10	described	describe	VERB
ap-1928	119	11	by	by	ADP
ap-1928	119	12	a	a	DET
ap-1928	119	13	power	power	NOUN
ap-1928	119	14	law	law	NOUN
ap-1928	119	15	with	with	ADP
ap-1928	119	16	dn	dn	PROPN
ap-1928	119	17	/	/	SYM
ap-1928	119	18	de	de	X
ap-1928	119	19	∝	∝	PROPN
ap-1928	119	20	e−2.2±0.2	e−2.2±0.2	PROPN
ap-1928	119	21	and	and	CCONJ
ap-1928	119	22	the	the	DET
ap-1928	119	23	veritas	verita	NOUN
ap-1928	119	24	spectrum	spectrum	NOUN
ap-1928	119	25	fits	fit	VERB
ap-1928	119	26	a	a	DET
ap-1928	119	27	power	power	NOUN
ap-1928	119	28	law	law	NOUN
ap-1928	119	29	∝	∝	PROPN
ap-1928	119	30	e−2.5±0.6	e−2.5±0.6	NOUN
ap-1928	119	31	.	.	PUNCT
ap-1928	120	1	similarly	similarly	ADV
ap-1928	120	2	,	,	PUNCT
ap-1928	120	3	the	the	DET
ap-1928	120	4	fermi	fermi	NOUN
ap-1928	120	5	and	and	CCONJ
ap-1928	120	6	hess	hess	PROPN
ap-1928	120	7	spectra	spectra	NOUN
ap-1928	120	8	of	of	ADP
ap-1928	120	9	ngc253	ngc253	PROPN
ap-1928	120	10	(	(	PUNCT
ap-1928	120	11	∝	∝	PROPN
ap-1928	120	12	e−1.94±0.4	e−1.94±0.4	ADP
ap-1928	120	13	and	and	CCONJ
ap-1928	120	14	∝	∝	PROPN
ap-1928	120	15	e−2.14±0.18	e−2.14±0.18	PRON
ap-1928	120	16	)	)	PUNCT
ap-1928	120	17	are	be	AUX
ap-1928	120	18	consistent	consistent	ADJ
ap-1928	120	19	with	with	ADP
ap-1928	120	20	the	the	DET
ap-1928	120	21	spectral	spectral	ADJ
ap-1928	120	22	index	index	NOUN
ap-1928	120	23	of	of	ADP
ap-1928	120	24	2	2	NUM
ap-1928	120	25	that	that	PRON
ap-1928	120	26	arises	arise	VERB
ap-1928	120	27	in	in	ADP
ap-1928	120	28	the	the	DET
ap-1928	120	29	model	model	NOUN
ap-1928	120	30	of	of	ADP
ap-1928	120	31	diffusive	diffusive	ADJ
ap-1928	120	32	shock	shock	NOUN
ap-1928	120	33	acceleration	acceleration	NOUN
ap-1928	120	34	.	.	PUNCT
ap-1928	121	1	a	a	DET
ap-1928	121	2	caveat	caveat	NOUN
ap-1928	121	3	is	be	AUX
ap-1928	121	4	that	that	SCONJ
ap-1928	121	5	the	the	DET
ap-1928	121	6	currently	currently	ADV
ap-1928	121	7	available	available	ADJ
ap-1928	121	8	γ	γ	PROPN
ap-1928	121	9	-	-	PUNCT
ap-1928	121	10	ray	ray	NOUN
ap-1928	121	11	spectra	spectra	NOUN
ap-1928	121	12	at	at	ADP
ap-1928	121	13	gev	gev	PROPN
ap-1928	121	14	and	and	CCONJ
ap-1928	121	15	tev	tev	PROPN
ap-1928	121	16	energies	energy	NOUN
ap-1928	121	17	are	be	AUX
ap-1928	121	18	not	not	PART
ap-1928	121	19	sufficient	sufficient	ADJ
ap-1928	121	20	to	to	PART
ap-1928	121	21	claim	claim	VERB
ap-1928	121	22	single	single	ADJ
ap-1928	121	23	component	component	NOUN
ap-1928	121	24	spectra	spectra	NOUN
ap-1928	121	25	.	.	PUNCT
ap-1928	122	1	assuming	assume	VERB
ap-1928	122	2	that	that	SCONJ
ap-1928	122	3	the	the	DET
ap-1928	122	4	energy	energy	NOUN
ap-1928	122	5	spectra	spectra	NOUN
ap-1928	122	6	of	of	ADP
ap-1928	122	7	m82	m82	PROPN
ap-1928	122	8	and	and	CCONJ
ap-1928	122	9	ngc253	ngc253	PROPN
ap-1928	122	10	are	be	AUX
ap-1928	122	11	indeed	indeed	ADV
ap-1928	122	12	power	power	NOUN
ap-1928	122	13	laws	law	NOUN
ap-1928	122	14	from	from	ADP
ap-1928	122	15	sub	sub	ADJ
ap-1928	122	16	-	-	ADJ
ap-1928	122	17	gev	gev	ADJ
ap-1928	122	18	to	to	PART
ap-1928	122	19	multitev	multitev	VERB
ap-1928	122	20	energies	energy	NOUN
ap-1928	122	21	,	,	PUNCT
ap-1928	122	22	these	these	DET
ap-1928	122	23	data	datum	NOUN
ap-1928	122	24	provide	provide	VERB
ap-1928	122	25	strong	strong	ADJ
ap-1928	122	26	evidence	evidence	NOUN
ap-1928	122	27	for	for	ADP
ap-1928	122	28	a	a	DET
ap-1928	122	29	connection	connection	NOUN
ap-1928	122	30	between	between	ADP
ap-1928	122	31	star	star	NOUN
ap-1928	122	32	formation	formation	NOUN
ap-1928	122	33	and	and	CCONJ
ap-1928	122	34	cosmic	cosmic	ADJ
ap-1928	122	35	-	-	PUNCT
ap-1928	122	36	ray	ray	NOUN
ap-1928	122	37	638	638	NUM
ap-1928	122	38	vol	vol	NOUN
ap-1928	122	39	.	.	PUNCT
ap-1928	123	1	53	53	NUM
ap-1928	123	2	supplement/2013	supplement/2013	ADJ
ap-1928	123	3	tev	tev	PROPN
ap-1928	123	4	gamma	gamma	NOUN
ap-1928	123	5	rays	ray	NOUN
ap-1928	123	6	:	:	PUNCT
ap-1928	123	7	observations	observation	NOUN
ap-1928	123	8	versus	versus	ADP
ap-1928	123	9	expectations	expectation	NOUN
ap-1928	123	10	&	&	CCONJ
ap-1928	123	11	theory	theory	NOUN
ap-1928	123	12	production	production	NOUN
ap-1928	123	13	.	.	PUNCT
ap-1928	124	1	this	this	PRON
ap-1928	124	2	is	be	AUX
ap-1928	124	3	consistent	consistent	ADJ
ap-1928	124	4	with	with	ADP
ap-1928	124	5	shock	shock	NOUN
ap-1928	124	6	acceleration	acceleration	NOUN
ap-1928	124	7	of	of	ADP
ap-1928	124	8	hadrons	hadron	NOUN
ap-1928	124	9	in	in	ADP
ap-1928	124	10	snrs	snrs	NOUN
ap-1928	124	11	.	.	PUNCT
ap-1928	125	1	following	follow	VERB
ap-1928	125	2	lacki	lacki	NOUN
ap-1928	125	3	et	et	PROPN
ap-1928	125	4	al	al	PROPN
ap-1928	125	5	.	.	PUNCT
ap-1928	126	1	[	[	X
ap-1928	126	2	22	22	NUM
ap-1928	126	3	]	]	PUNCT
ap-1928	126	4	,	,	PUNCT
ap-1928	126	5	the	the	DET
ap-1928	126	6	spectra	spectra	NOUN
ap-1928	126	7	of	of	ADP
ap-1928	126	8	m82	m82	PROPN
ap-1928	126	9	and	and	CCONJ
ap-1928	126	10	ngc253	ngc253	PROPN
ap-1928	126	11	indicate	indicate	VERB
ap-1928	126	12	that	that	SCONJ
ap-1928	126	13	energy	energy	NOUN
ap-1928	126	14	losses	loss	NOUN
ap-1928	126	15	of	of	ADP
ap-1928	126	16	cosmic	cosmic	ADJ
ap-1928	126	17	rays	ray	NOUN
ap-1928	126	18	from	from	ADP
ap-1928	126	19	pion	pion	NOUN
ap-1928	126	20	production	production	NOUN
ap-1928	126	21	and	and	CCONJ
ap-1928	126	22	advective	advective	ADJ
ap-1928	126	23	losses	loss	NOUN
ap-1928	126	24	from	from	ADP
ap-1928	126	25	a	a	DET
ap-1928	126	26	galactic	galactic	ADJ
ap-1928	126	27	wind	wind	NOUN
ap-1928	126	28	dominate	dominate	VERB
ap-1928	126	29	over	over	ADP
ap-1928	126	30	any	any	DET
ap-1928	126	31	diffusive	diffusive	ADJ
ap-1928	126	32	losses	loss	NOUN
ap-1928	126	33	,	,	PUNCT
ap-1928	126	34	which	which	PRON
ap-1928	126	35	would	would	AUX
ap-1928	126	36	steepen	steepen	VERB
ap-1928	126	37	the	the	DET
ap-1928	126	38	measured	measured	ADJ
ap-1928	126	39	spectrum	spectrum	NOUN
ap-1928	126	40	.	.	PUNCT
ap-1928	127	1	in	in	ADP
ap-1928	127	2	summary	summary	NOUN
ap-1928	127	3	,	,	PUNCT
ap-1928	127	4	the	the	DET
ap-1928	127	5	discovery	discovery	NOUN
ap-1928	127	6	of	of	ADP
ap-1928	127	7	tev	tev	PROPN
ap-1928	127	8	γ	γ	PROPN
ap-1928	127	9	-	-	PUNCT
ap-1928	127	10	ray	ray	NOUN
ap-1928	127	11	emission	emission	NOUN
ap-1928	127	12	from	from	ADP
ap-1928	127	13	sb	sb	PROPN
ap-1928	127	14	galaxies	galaxy	NOUN
ap-1928	127	15	at	at	ADP
ap-1928	127	16	the	the	DET
ap-1928	127	17	flux	flux	NOUN
ap-1928	127	18	level	level	NOUN
ap-1928	127	19	that	that	PRON
ap-1928	127	20	is	be	AUX
ap-1928	127	21	expected	expect	VERB
ap-1928	127	22	from	from	ADP
ap-1928	127	23	cosmic	cosmic	ADJ
ap-1928	127	24	-	-	PUNCT
ap-1928	127	25	ray	ray	NOUN
ap-1928	127	26	interactions	interaction	NOUN
ap-1928	127	27	with	with	ADP
ap-1928	127	28	gas	gas	NOUN
ap-1928	127	29	in	in	ADP
ap-1928	127	30	the	the	DET
ap-1928	127	31	star	star	NOUN
ap-1928	127	32	forming	form	VERB
ap-1928	127	33	region	region	NOUN
ap-1928	127	34	,	,	PUNCT
ap-1928	127	35	and	and	CCONJ
ap-1928	127	36	a	a	DET
ap-1928	127	37	measured	measured	ADJ
ap-1928	127	38	spectral	spectral	ADJ
ap-1928	127	39	slope	slope	NOUN
ap-1928	127	40	that	that	PRON
ap-1928	127	41	is	be	AUX
ap-1928	127	42	consistent	consistent	ADJ
ap-1928	127	43	with	with	ADP
ap-1928	127	44	shock	shock	NOUN
ap-1928	127	45	acceleration	acceleration	NOUN
ap-1928	127	46	in	in	ADP
ap-1928	127	47	snrs	snrs	NOUN
ap-1928	127	48	,	,	PUNCT
ap-1928	127	49	provides	provide	VERB
ap-1928	127	50	strong	strong	ADJ
ap-1928	127	51	evidence	evidence	NOUN
ap-1928	127	52	for	for	ADP
ap-1928	127	53	snr	snr	PROPN
ap-1928	127	54	origin	origin	NOUN
ap-1928	127	55	of	of	ADP
ap-1928	127	56	cosmic	cosmic	ADJ
ap-1928	127	57	rays	ray	NOUN
ap-1928	127	58	.	.	PUNCT
ap-1928	128	1	3	3	X
ap-1928	128	2	.	.	X
ap-1928	128	3	the	the	DET
ap-1928	128	4	opacity	opacity	NOUN
ap-1928	128	5	of	of	ADP
ap-1928	128	6	the	the	DET
ap-1928	128	7	universe	universe	NOUN
ap-1928	128	8	in	in	ADP
ap-1928	128	9	gamma	gamma	NOUN
ap-1928	128	10	-	-	PUNCT
ap-1928	128	11	rays	ray	NOUN
ap-1928	128	12	the	the	DET
ap-1928	128	13	universe	universe	NOUN
ap-1928	128	14	is	be	AUX
ap-1928	128	15	more	more	ADV
ap-1928	128	16	transparent	transparent	ADJ
ap-1928	128	17	to	to	ADP
ap-1928	128	18	γ	γ	NOUN
ap-1928	128	19	-	-	NOUN
ap-1928	128	20	rays	ray	NOUN
ap-1928	128	21	than	than	SCONJ
ap-1928	128	22	expected	expect	VERB
ap-1928	128	23	;	;	PUNCT
ap-1928	128	24	this	this	DET
ap-1928	128	25	notion	notion	NOUN
ap-1928	128	26	arises	arise	VERB
ap-1928	128	27	from	from	ADP
ap-1928	128	28	the	the	DET
ap-1928	128	29	fact	fact	NOUN
ap-1928	128	30	that	that	SCONJ
ap-1928	128	31	several	several	ADJ
ap-1928	128	32	blazars	blazar	NOUN
ap-1928	128	33	have	have	AUX
ap-1928	128	34	been	be	AUX
ap-1928	128	35	detected	detect	VERB
ap-1928	128	36	at	at	ADP
ap-1928	128	37	a	a	DET
ap-1928	128	38	redshift	redshift	NOUN
ap-1928	128	39	of	of	ADP
ap-1928	128	40	≥	≥	NOUN
ap-1928	128	41	0.3	0.3	NUM
ap-1928	128	42	,	,	PUNCT
ap-1928	128	43	with	with	ADP
ap-1928	128	44	3c279	3c279	NUM
ap-1928	128	45	being	be	AUX
ap-1928	128	46	the	the	DET
ap-1928	128	47	most	most	ADV
ap-1928	128	48	distant1	distant1	ADJ
ap-1928	128	49	object	object	NOUN
ap-1928	128	50	with	with	ADP
ap-1928	128	51	redshift	redshift	NOUN
ap-1928	128	52	z	z	NOUN
ap-1928	128	53	=	=	NOUN
ap-1928	128	54	0.536	0.536	NUM
ap-1928	128	55	.	.	PUNCT
ap-1928	129	1	while	while	SCONJ
ap-1928	129	2	the	the	DET
ap-1928	129	3	universe	universe	NOUN
ap-1928	129	4	is	be	AUX
ap-1928	129	5	transparent	transparent	ADJ
ap-1928	129	6	to	to	ADP
ap-1928	129	7	γ	γ	NOUN
ap-1928	129	8	-	-	NOUN
ap-1928	129	9	rays	ray	NOUN
ap-1928	129	10	below	below	ADP
ap-1928	129	11	10gev	10gev	NOUN
ap-1928	129	12	,	,	PUNCT
ap-1928	129	13	the	the	DET
ap-1928	129	14	opacity	opacity	NOUN
ap-1928	129	15	increases	increase	VERB
ap-1928	129	16	with	with	ADP
ap-1928	129	17	energy	energy	NOUN
ap-1928	129	18	and	and	CCONJ
ap-1928	129	19	redshift	redshift	NOUN
ap-1928	129	20	,	,	PUNCT
ap-1928	129	21	making	make	VERB
ap-1928	129	22	it	it	PRON
ap-1928	129	23	opaque	opaque	ADJ
ap-1928	129	24	to	to	ADP
ap-1928	129	25	tev	tev	PROPN
ap-1928	129	26	photons	photon	NOUN
ap-1928	129	27	en	en	ADP
ap-1928	129	28	route	route	NOUN
ap-1928	129	29	to	to	ADP
ap-1928	129	30	earth	earth	NOUN
ap-1928	129	31	when	when	SCONJ
ap-1928	129	32	traveling	travel	VERB
ap-1928	129	33	from	from	ADP
ap-1928	129	34	redshifts	redshifts	PROPN
ap-1928	129	35	≥	≥	PROPN
ap-1928	129	36	0.5	0.5	NUM
ap-1928	129	37	.	.	PUNCT
ap-1928	130	1	thus	thus	ADV
ap-1928	130	2	,	,	PUNCT
ap-1928	130	3	fermi	fermi	PROPN
ap-1928	130	4	-	-	PUNCT
ap-1928	130	5	lat	lat	PROPN
ap-1928	130	6	spectra	spectra	NOUN
ap-1928	130	7	combined	combine	VERB
ap-1928	130	8	with	with	ADP
ap-1928	130	9	spectra	spectra	NOUN
ap-1928	130	10	from	from	ADP
ap-1928	130	11	acts	act	NOUN
ap-1928	130	12	should	should	AUX
ap-1928	130	13	contain	contain	VERB
ap-1928	130	14	pertinent	pertinent	ADJ
ap-1928	130	15	information	information	NOUN
ap-1928	130	16	on	on	ADP
ap-1928	130	17	γ	γ	PROPN
ap-1928	130	18	-	-	PUNCT
ap-1928	130	19	ray	ray	NOUN
ap-1928	130	20	absorption	absorption	NOUN
ap-1928	130	21	.	.	PUNCT
ap-1928	131	1	figure	figure	NOUN
ap-1928	131	2	8	8	NUM
ap-1928	131	3	shows	show	VERB
ap-1928	131	4	the	the	DET
ap-1928	131	5	difference	difference	NOUN
ap-1928	131	6	between	between	ADP
ap-1928	131	7	the	the	DET
ap-1928	131	8	gev	gev	NOUN
ap-1928	131	9	spectra	spectra	NOUN
ap-1928	131	10	and	and	CCONJ
ap-1928	131	11	the	the	DET
ap-1928	131	12	tev	tev	PROPN
ap-1928	131	13	spectra	spectra	NOUN
ap-1928	131	14	∆γ	∆γ	PROPN
ap-1928	131	15	=	=	SYM
ap-1928	131	16	γgev	γgev	NOUN
ap-1928	131	17	−	−	PROPN
ap-1928	131	18	γtev	γtev	NOUN
ap-1928	131	19	for	for	ADP
ap-1928	131	20	3	3	NUM
ap-1928	131	21	dozen	dozen	NOUN
ap-1928	131	22	extragalactic	extragalactic	ADJ
ap-1928	131	23	sources	source	NOUN
ap-1928	131	24	versus	versus	ADP
ap-1928	131	25	redshift	redshift	NOUN
ap-1928	131	26	(	(	PUNCT
ap-1928	131	27	source	source	NOUN
ap-1928	131	28	list	list	NOUN
ap-1928	131	29	,	,	PUNCT
ap-1928	131	30	see	see	VERB
ap-1928	131	31	review	review	NOUN
ap-1928	131	32	by	by	ADP
ap-1928	131	33	dwek	dwek	PROPN
ap-1928	131	34	&	&	CCONJ
ap-1928	131	35	krennrich	krennrich	PROPN
ap-1928	131	36	2012	2012	NUM
ap-1928	131	37	[	[	X
ap-1928	131	38	12	12	NUM
ap-1928	131	39	]	]	PUNCT
ap-1928	131	40	)	)	PUNCT
ap-1928	131	41	.	.	PUNCT
ap-1928	132	1	if	if	SCONJ
ap-1928	132	2	ebl	ebl	PROPN
ap-1928	132	3	absorption	absorption	NOUN
ap-1928	132	4	were	be	AUX
ap-1928	132	5	to	to	PART
ap-1928	132	6	affect	affect	VERB
ap-1928	132	7	the	the	DET
ap-1928	132	8	spectra	spectra	NOUN
ap-1928	132	9	,	,	PUNCT
ap-1928	132	10	a	a	DET
ap-1928	132	11	gradual	gradual	ADJ
ap-1928	132	12	softening	softening	NOUN
ap-1928	132	13	of	of	ADP
ap-1928	132	14	the	the	DET
ap-1928	132	15	energy	energy	NOUN
ap-1928	132	16	spectra	spectra	NOUN
ap-1928	132	17	with	with	ADP
ap-1928	132	18	redshift	redshift	NOUN
ap-1928	132	19	is	be	AUX
ap-1928	132	20	expected	expect	VERB
ap-1928	132	21	,	,	PUNCT
ap-1928	132	22	while	while	SCONJ
ap-1928	132	23	the	the	DET
ap-1928	132	24	exact	exact	ADJ
ap-1928	132	25	functional	functional	ADJ
ap-1928	132	26	form	form	NOUN
ap-1928	132	27	depends	depend	VERB
ap-1928	132	28	on	on	ADP
ap-1928	132	29	the	the	DET
ap-1928	132	30	ebl	ebl	NOUN
ap-1928	132	31	spectrum	spectrum	NOUN
ap-1928	132	32	itself	itself	PRON
ap-1928	132	33	.	.	PUNCT
ap-1928	133	1	this	this	PRON
ap-1928	133	2	is	be	AUX
ap-1928	133	3	due	due	ADJ
ap-1928	133	4	to	to	ADP
ap-1928	133	5	a	a	DET
ap-1928	133	6	higher	high	ADJ
ap-1928	133	7	proper	proper	ADJ
ap-1928	133	8	number	number	NOUN
ap-1928	133	9	density	density	NOUN
ap-1928	133	10	of	of	ADP
ap-1928	133	11	ebl	ebl	PROPN
ap-1928	133	12	photons	photon	NOUN
ap-1928	133	13	and	and	CCONJ
ap-1928	133	14	a	a	DET
ap-1928	133	15	shift	shift	NOUN
ap-1928	133	16	of	of	ADP
ap-1928	133	17	the	the	DET
ap-1928	133	18	ebl	ebl	NOUN
ap-1928	133	19	spectrum	spectrum	NOUN
ap-1928	133	20	towards	towards	ADP
ap-1928	133	21	shorter	short	ADJ
ap-1928	133	22	wavelengths	wavelength	NOUN
ap-1928	133	23	as	as	SCONJ
ap-1928	133	24	is	be	AUX
ap-1928	133	25	the	the	DET
ap-1928	133	26	case	case	NOUN
ap-1928	133	27	with	with	ADP
ap-1928	133	28	any	any	DET
ap-1928	133	29	cosmological	cosmological	ADJ
ap-1928	133	30	radiation	radiation	NOUN
ap-1928	133	31	field	field	NOUN
ap-1928	133	32	at	at	ADP
ap-1928	133	33	larger	large	ADJ
ap-1928	133	34	redshifts	redshift	NOUN
ap-1928	133	35	.	.	PUNCT
ap-1928	134	1	figure	figure	NOUN
ap-1928	134	2	8	8	NUM
ap-1928	134	3	shows	show	VERB
ap-1928	134	4	a	a	DET
ap-1928	134	5	decrease	decrease	NOUN
ap-1928	134	6	of	of	ADP
ap-1928	134	7	∆γ	∆γ	PROPN
ap-1928	134	8	with	with	ADP
ap-1928	134	9	redshift	redshift	NOUN
ap-1928	134	10	,	,	PUNCT
ap-1928	134	11	which	which	PRON
ap-1928	134	12	is	be	AUX
ap-1928	134	13	could	could	AUX
ap-1928	134	14	be	be	AUX
ap-1928	134	15	due	due	ADJ
ap-1928	134	16	to	to	ADP
ap-1928	134	17	ebl	ebl	PROPN
ap-1928	134	18	absorption	absorption	NOUN
ap-1928	134	19	.	.	PUNCT
ap-1928	135	1	there	there	PRON
ap-1928	135	2	is	be	VERB
ap-1928	135	3	also	also	ADV
ap-1928	135	4	significant	significant	ADJ
ap-1928	135	5	scatter	scatter	NOUN
ap-1928	135	6	in	in	ADP
ap-1928	135	7	∆γ	∆γ	PROPN
ap-1928	135	8	,	,	PUNCT
ap-1928	135	9	which	which	PRON
ap-1928	135	10	is	be	AUX
ap-1928	135	11	a	a	DET
ap-1928	135	12	result	result	NOUN
ap-1928	135	13	of	of	ADP
ap-1928	135	14	spectral	spectral	ADJ
ap-1928	135	15	changes	change	NOUN
ap-1928	135	16	between	between	ADP
ap-1928	135	17	gev	gev	NOUN
ap-1928	135	18	and	and	CCONJ
ap-1928	135	19	tev	tev	PROPN
ap-1928	135	20	energies	energy	NOUN
ap-1928	135	21	related	relate	VERB
ap-1928	135	22	to	to	ADP
ap-1928	135	23	the	the	DET
ap-1928	135	24	γ	γ	PROPN
ap-1928	135	25	-	-	PUNCT
ap-1928	135	26	ray	ray	NOUN
ap-1928	135	27	source	source	NOUN
ap-1928	135	28	itself	itself	PRON
ap-1928	135	29	.	.	PUNCT
ap-1928	136	1	the	the	DET
ap-1928	136	2	key	key	ADJ
ap-1928	136	3	problem	problem	NOUN
ap-1928	136	4	in	in	ADP
ap-1928	136	5	deriving	derive	VERB
ap-1928	136	6	ebl	ebl	PROPN
ap-1928	136	7	constraints	constraint	NOUN
ap-1928	136	8	from	from	ADP
ap-1928	136	9	γ	γ	PROPN
ap-1928	136	10	-	-	PUNCT
ap-1928	136	11	ray	ray	NOUN
ap-1928	136	12	absorption	absorption	NOUN
ap-1928	136	13	is	be	AUX
ap-1928	136	14	our	our	PRON
ap-1928	136	15	trusted	trust	VERB
ap-1928	136	16	knowledge	knowledge	NOUN
ap-1928	136	17	of	of	ADP
ap-1928	136	18	the	the	DET
ap-1928	136	19	intrinsic	intrinsic	ADJ
ap-1928	136	20	source	source	NOUN
ap-1928	136	21	spectra	spectra	NOUN
ap-1928	136	22	.	.	PUNCT
ap-1928	137	1	in	in	ADP
ap-1928	137	2	particular	particular	ADJ
ap-1928	137	3	hbls	hbls	NOUN
ap-1928	137	4	(	(	PUNCT
ap-1928	137	5	empty	empty	ADJ
ap-1928	137	6	circles	circle	NOUN
ap-1928	137	7	)	)	PUNCT
ap-1928	137	8	exhibit	exhibit	VERB
ap-1928	137	9	a	a	DET
ap-1928	137	10	wide	wide	ADJ
ap-1928	137	11	spread	spread	NOUN
ap-1928	137	12	in	in	ADP
ap-1928	137	13	∆γ	∆γ	PROPN
ap-1928	137	14	;	;	PUNCT
ap-1928	137	15	while	while	SCONJ
ap-1928	137	16	hard	hard	ADJ
ap-1928	137	17	spectra	spectra	ADJ
ap-1928	137	18	hbls	hbls	NOUN
ap-1928	137	19	extend	extend	VERB
ap-1928	137	20	to	to	ADP
ap-1928	137	21	several	several	ADJ
ap-1928	137	22	tev	tev	NOUN
ap-1928	137	23	(	(	PUNCT
ap-1928	137	24	mrk	mrk	PROPN
ap-1928	137	25	501	501	NUM
ap-1928	137	26	,	,	PUNCT
ap-1928	137	27	mrk	mrk	PROPN
ap-1928	137	28	421	421	NUM
ap-1928	137	29	,	,	PUNCT
ap-1928	137	30	h	h	NOUN
ap-1928	137	31	1426	1426	NUM
ap-1928	137	32	+	+	SYM
ap-1928	137	33	428	428	NUM
ap-1928	137	34	,	,	PUNCT
ap-1928	137	35	1es	1es	NOUN
ap-1928	137	36	0229	0229	NUM
ap-1928	137	37	+	+	ADJ
ap-1928	137	38	200	200	NUM
ap-1928	137	39	,	,	PUNCT
ap-1928	137	40	etc	etc	X
ap-1928	137	41	.	.	X
ap-1928	137	42	)	)	PUNCT
ap-1928	137	43	,	,	PUNCT
ap-1928	137	44	others	other	NOUN
ap-1928	137	45	exhibit	exhibit	VERB
ap-1928	137	46	strong	strong	ADJ
ap-1928	137	47	intrinsic	intrinsic	ADJ
ap-1928	137	48	curvature	curvature	NOUN
ap-1928	137	49	between	between	ADP
ap-1928	137	50	gev	gev	NOUN
ap-1928	137	51	and	and	CCONJ
ap-1928	137	52	tev	tev	PROPN
ap-1928	137	53	energies	energy	NOUN
ap-1928	137	54	to	to	ADP
ap-1928	137	55	the	the	DET
ap-1928	137	56	point	point	NOUN
ap-1928	137	57	where	where	SCONJ
ap-1928	137	58	they	they	PRON
ap-1928	137	59	are	be	AUX
ap-1928	137	60	undetectable	undetectable	ADJ
ap-1928	137	61	at	at	ADP
ap-1928	137	62	tev	tev	PROPN
ap-1928	137	63	energies	energy	NOUN
ap-1928	137	64	.	.	PUNCT
ap-1928	138	1	multi	multi	ADJ
ap-1928	138	2	-	-	ADJ
ap-1928	138	3	wavelength	wavelength	ADJ
ap-1928	138	4	modeling	modeling	NOUN
ap-1928	138	5	of	of	ADP
ap-1928	138	6	the	the	DET
ap-1928	138	7	different	different	ADJ
ap-1928	138	8	sub	sub	NOUN
ap-1928	138	9	-	-	NOUN
ap-1928	138	10	classes	class	NOUN
ap-1928	138	11	of	of	ADP
ap-1928	138	12	blazars	blazar	NOUN
ap-1928	138	13	(	(	PUNCT
ap-1928	138	14	fsrqs	fsrqs	ADV
ap-1928	138	15	,	,	PUNCT
ap-1928	138	16	lbls	lbls	ADJ
ap-1928	138	17	,	,	PUNCT
ap-1928	138	18	ibls	ibls	NOUN
ap-1928	138	19	,	,	PUNCT
ap-1928	138	20	hbls	hbls	NOUN
ap-1928	138	21	)	)	PUNCT
ap-1928	138	22	will	will	AUX
ap-1928	138	23	be	be	AUX
ap-1928	138	24	required	require	VERB
ap-1928	138	25	to	to	PART
ap-1928	138	26	correct	correct	VERB
ap-1928	138	27	for	for	ADP
ap-1928	138	28	source	source	NOUN
ap-1928	138	29	-	-	PUNCT
ap-1928	138	30	intrinsic	intrinsic	ADJ
ap-1928	138	31	softening	softening	NOUN
ap-1928	138	32	.	.	PUNCT
ap-1928	139	1	1a	1a	PROPN
ap-1928	139	2	recent	recent	ADJ
ap-1928	139	3	paper	paper	NOUN
ap-1928	139	4	by	by	ADP
ap-1928	139	5	landt	landt	PROPN
ap-1928	140	1	[	[	X
ap-1928	140	2	23	23	NUM
ap-1928	140	3	]	]	PUNCT
ap-1928	140	4	,	,	PUNCT
ap-1928	140	5	claimed	claim	VERB
ap-1928	140	6	a	a	DET
ap-1928	140	7	redshift	redshift	NOUN
ap-1928	140	8	of	of	ADP
ap-1928	140	9	≥	≥	NOUN
ap-1928	140	10	1.2	1.2	NUM
ap-1928	140	11	for	for	ADP
ap-1928	140	12	tev	tev	PROPN
ap-1928	140	13	γ	γ	PROPN
ap-1928	140	14	-	-	PUNCT
ap-1928	140	15	ray	ray	NOUN
ap-1928	140	16	detected	detect	VERB
ap-1928	140	17	bl	bl	PROPN
ap-1928	140	18	lac	lac	PROPN
ap-1928	140	19	pks	pks	X
ap-1928	140	20	0447	0447	NUM
ap-1928	140	21	-	-	SYM
ap-1928	140	22	439	439	NUM
ap-1928	140	23	,	,	PUNCT
ap-1928	140	24	but	but	CCONJ
ap-1928	140	25	was	be	AUX
ap-1928	140	26	shown	show	VERB
ap-1928	140	27	to	to	PART
ap-1928	140	28	be	be	AUX
ap-1928	140	29	invalid	invalid	ADJ
ap-1928	140	30	[	[	X
ap-1928	140	31	15	15	NUM
ap-1928	140	32	]	]	PUNCT
ap-1928	140	33	as	as	SCONJ
ap-1928	140	34	the	the	DET
ap-1928	140	35	absorption	absorption	NOUN
ap-1928	140	36	line	line	NOUN
ap-1928	140	37	found	find	VERB
ap-1928	140	38	is	be	AUX
ap-1928	140	39	a	a	DET
ap-1928	140	40	known	know	VERB
ap-1928	140	41	telluric	telluric	ADJ
ap-1928	140	42	line	line	NOUN
ap-1928	140	43	.	.	PUNCT
ap-1928	141	1	figure	figure	NOUN
ap-1928	141	2	8	8	NUM
ap-1928	141	3	.	.	PUNCT
ap-1928	142	1	the	the	DET
ap-1928	142	2	difference	difference	NOUN
ap-1928	142	3	between	between	ADP
ap-1928	142	4	the	the	DET
ap-1928	142	5	spectral	spectral	ADJ
ap-1928	142	6	index	index	NOUN
ap-1928	142	7	measured	measure	VERB
ap-1928	142	8	by	by	ADP
ap-1928	142	9	fermi	fermi	NOUN
ap-1928	142	10	-	-	PUNCT
ap-1928	142	11	lat	lat	NOUN
ap-1928	142	12	and	and	CCONJ
ap-1928	142	13	acts	act	VERB
ap-1928	142	14	(	(	PUNCT
ap-1928	142	15	∆γ	∆γ	PROPN
ap-1928	142	16	)	)	PUNCT
ap-1928	142	17	is	be	AUX
ap-1928	142	18	plotted	plot	VERB
ap-1928	142	19	versus	versus	ADP
ap-1928	142	20	redshift	redshift	NOUN
ap-1928	142	21	for	for	ADP
ap-1928	142	22	extragalactic	extragalactic	ADJ
ap-1928	142	23	sources	source	NOUN
ap-1928	142	24	[	[	X
ap-1928	142	25	12	12	NUM
ap-1928	142	26	]	]	PUNCT
ap-1928	142	27	.	.	PUNCT
ap-1928	143	1	figure	figure	NOUN
ap-1928	143	2	9	9	NUM
ap-1928	143	3	.	.	PUNCT
ap-1928	144	1	the	the	DET
ap-1928	144	2	blue	blue	ADJ
ap-1928	144	3	shaded	shaded	ADJ
ap-1928	144	4	confidence	confidence	NOUN
ap-1928	144	5	region	region	NOUN
ap-1928	144	6	(	(	PUNCT
ap-1928	144	7	2σ	2σ	NUM
ap-1928	144	8	)	)	PUNCT
ap-1928	144	9	of	of	ADP
ap-1928	144	10	ebl	ebl	PROPN
ap-1928	144	11	constraints	constraint	VERB
ap-1928	144	12	from	from	ADP
ap-1928	144	13	[	[	X
ap-1928	144	14	25	25	NUM
ap-1928	144	15	]	]	PUNCT
ap-1928	144	16	are	be	AUX
ap-1928	144	17	shown	show	VERB
ap-1928	144	18	and	and	CCONJ
ap-1928	144	19	compared	compare	VERB
ap-1928	144	20	with	with	ADP
ap-1928	144	21	galaxy	galaxy	NOUN
ap-1928	144	22	count	count	VERB
ap-1928	144	23	lower	low	ADJ
ap-1928	144	24	limits	limit	NOUN
ap-1928	144	25	(	(	PUNCT
ap-1928	144	26	filled	fill	VERB
ap-1928	144	27	symbols	symbol	NOUN
ap-1928	144	28	)	)	PUNCT
ap-1928	144	29	.	.	PUNCT
ap-1928	145	1	also	also	ADV
ap-1928	145	2	shown	show	VERB
ap-1928	145	3	are	be	AUX
ap-1928	145	4	ebl	ebl	NOUN
ap-1928	145	5	models	model	NOUN
ap-1928	145	6	(	(	PUNCT
ap-1928	145	7	lines	line	NOUN
ap-1928	145	8	)	)	PUNCT
ap-1928	145	9	.	.	PUNCT
ap-1928	146	1	while	while	SCONJ
ap-1928	146	2	these	these	DET
ap-1928	146	3	constraints	constraint	NOUN
ap-1928	146	4	are	be	AUX
ap-1928	146	5	in	in	ADP
ap-1928	146	6	good	good	ADJ
ap-1928	146	7	agreement	agreement	NOUN
ap-1928	146	8	with	with	ADP
ap-1928	146	9	other	other	ADJ
ap-1928	146	10	works	work	NOUN
ap-1928	146	11	such	such	ADJ
ap-1928	146	12	as	as	ADP
ap-1928	146	13	[	[	X
ap-1928	146	14	6	6	NUM
ap-1928	146	15	]	]	PUNCT
ap-1928	146	16	in	in	ADP
ap-1928	146	17	the	the	DET
ap-1928	146	18	near	near	NOUN
ap-1928	146	19	-	-	PUNCT
ap-1928	146	20	ir	ir	NOUN
ap-1928	146	21	,	,	PUNCT
ap-1928	146	22	they	they	PRON
ap-1928	146	23	are	be	AUX
ap-1928	146	24	quite	quite	ADV
ap-1928	146	25	low	low	ADJ
ap-1928	146	26	in	in	ADP
ap-1928	146	27	the	the	DET
ap-1928	146	28	mid	mid	PROPN
ap-1928	146	29	-	-	PROPN
ap-1928	146	30	ir	ir	NOUN
ap-1928	146	31	,	,	PUNCT
ap-1928	146	32	but	but	CCONJ
ap-1928	146	33	compatible	compatible	ADJ
ap-1928	146	34	with	with	ADP
ap-1928	146	35	lower	low	ADJ
ap-1928	146	36	limits	limit	NOUN
ap-1928	146	37	from	from	ADP
ap-1928	146	38	galaxy	galaxy	NOUN
ap-1928	146	39	counts	count	NOUN
ap-1928	146	40	.	.	PUNCT
ap-1928	147	1	other	other	ADJ
ap-1928	147	2	approaches	approach	NOUN
ap-1928	147	3	to	to	PART
ap-1928	147	4	provide	provide	VERB
ap-1928	147	5	limits	limit	NOUN
ap-1928	147	6	and	and	CCONJ
ap-1928	147	7	constraints	constraint	NOUN
ap-1928	147	8	on	on	ADP
ap-1928	147	9	the	the	DET
ap-1928	147	10	ebl	ebl	PROPN
ap-1928	147	11	intensity	intensity	NOUN
ap-1928	147	12	in	in	ADP
ap-1928	147	13	the	the	DET
ap-1928	147	14	nearto	nearto	ADJ
ap-1928	147	15	mid	mid	PROPN
ap-1928	147	16	-	-	PROPN
ap-1928	147	17	ir	ir	NOUN
ap-1928	147	18	are	be	AUX
ap-1928	147	19	based	base	VERB
ap-1928	147	20	on	on	ADP
ap-1928	147	21	assumptions	assumption	NOUN
ap-1928	147	22	made	make	VERB
ap-1928	147	23	on	on	ADP
ap-1928	147	24	the	the	DET
ap-1928	147	25	intrinsic	intrinsic	ADJ
ap-1928	147	26	blazar	blazar	NOUN
ap-1928	147	27	spectra	spectra	NOUN
ap-1928	147	28	,	,	PUNCT
ap-1928	147	29	guided	guide	VERB
ap-1928	147	30	by	by	ADP
ap-1928	147	31	theoretical	theoretical	ADJ
ap-1928	147	32	principles	principle	NOUN
ap-1928	147	33	,	,	PUNCT
ap-1928	147	34	i.e.	i.e.	X
ap-1928	147	35	,	,	PUNCT
ap-1928	147	36	the	the	DET
ap-1928	147	37	“	"	PUNCT
ap-1928	147	38	no	no	DET
ap-1928	147	39	exponential	exponential	NOUN
ap-1928	147	40	-	-	PUNCT
ap-1928	147	41	rise	rise	NOUN
ap-1928	147	42	”	"	PUNCT
ap-1928	147	43	principle	principle	NOUN
ap-1928	148	1	[	[	X
ap-1928	148	2	11	11	NUM
ap-1928	148	3	]	]	PUNCT
ap-1928	148	4	and	and	CCONJ
ap-1928	148	5	the	the	DET
ap-1928	148	6	“	"	PUNCT
ap-1928	148	7	no	no	ADV
ap-1928	148	8	harder	hard	ADV
ap-1928	148	9	than	than	ADP
ap-1928	148	10	γ	γ	PROPN
ap-1928	148	11	≥	≥	NUM
ap-1928	148	12	1.5	1.5	NUM
ap-1928	148	13	”	"	PUNCT
ap-1928	148	14	principle	principle	NOUN
ap-1928	148	15	[	[	X
ap-1928	148	16	6	6	NUM
ap-1928	148	17	,	,	PUNCT
ap-1928	148	18	24	24	NUM
ap-1928	148	19	]	]	PUNCT
ap-1928	148	20	,	,	PUNCT
ap-1928	148	21	the	the	DET
ap-1928	148	22	latter	latter	ADJ
ap-1928	148	23	based	base	VERB
ap-1928	148	24	on	on	ADP
ap-1928	148	25	the	the	DET
ap-1928	148	26	theory	theory	NOUN
ap-1928	148	27	of	of	ADP
ap-1928	148	28	diffusive	diffusive	ADJ
ap-1928	148	29	shock	shock	NOUN
ap-1928	148	30	acceleration	acceleration	NOUN
ap-1928	148	31	.	.	PUNCT
ap-1928	149	1	a	a	DET
ap-1928	149	2	more	more	ADV
ap-1928	149	3	recently	recently	ADV
ap-1928	149	4	developed	develop	VERB
ap-1928	149	5	method	method	NOUN
ap-1928	149	6	uses	use	VERB
ap-1928	149	7	the	the	DET
ap-1928	149	8	fact	fact	NOUN
ap-1928	149	9	the	the	DET
ap-1928	149	10	ebl	ebl	PROPN
ap-1928	149	11	spectrum	spectrum	NOUN
ap-1928	149	12	exhibits	exhibit	VERB
ap-1928	149	13	a	a	DET
ap-1928	149	14	trough	trough	NOUN
ap-1928	149	15	in	in	ADP
ap-1928	149	16	the	the	DET
ap-1928	149	17	mid	mid	PROPN
ap-1928	149	18	-	-	PROPN
ap-1928	149	19	ir	ir	NOUN
ap-1928	149	20	between	between	ADP
ap-1928	149	21	the	the	DET
ap-1928	149	22	stellar	stellar	ADJ
ap-1928	149	23	peak	peak	NOUN
ap-1928	149	24	(	(	PUNCT
ap-1928	149	25	∼	∼	NOUN
ap-1928	149	26	1	1	NUM
ap-1928	149	27	µm	µm	NOUN
ap-1928	149	28	)	)	PUNCT
ap-1928	149	29	and	and	CCONJ
ap-1928	149	30	the	the	DET
ap-1928	149	31	dust	dust	NOUN
ap-1928	149	32	emission	emission	NOUN
ap-1928	149	33	peak	peak	NOUN
ap-1928	149	34	(	(	PUNCT
ap-1928	149	35	∼	∼	NOUN
ap-1928	149	36	100	100	NUM
ap-1928	149	37	µm	µm	NOUN
ap-1928	149	38	)	)	PUNCT
ap-1928	149	39	.	.	PUNCT
ap-1928	150	1	the	the	DET
ap-1928	150	2	depth	depth	NOUN
ap-1928	150	3	of	of	ADP
ap-1928	150	4	this	this	DET
ap-1928	150	5	feature	feature	NOUN
ap-1928	150	6	of	of	ADP
ap-1928	150	7	the	the	DET
ap-1928	150	8	ebl	ebl	NOUN
ap-1928	150	9	can	can	AUX
ap-1928	150	10	also	also	ADV
ap-1928	150	11	be	be	AUX
ap-1928	150	12	expressed	express	VERB
ap-1928	150	13	as	as	ADP
ap-1928	150	14	a	a	DET
ap-1928	150	15	near	near	ADJ
ap-1928	150	16	/	/	SYM
ap-1928	150	17	mid	mid	NOUN
ap-1928	150	18	-	-	PROPN
ap-1928	150	19	ir	ir	ADJ
ap-1928	150	20	ratio	ratio	NOUN
ap-1928	150	21	and	and	CCONJ
ap-1928	150	22	determine	determine	VERB
ap-1928	150	23	the	the	DET
ap-1928	150	24	γ	γ	PROPN
ap-1928	150	25	-	-	PUNCT
ap-1928	150	26	ray	ray	NOUN
ap-1928	150	27	absorption	absorption	NOUN
ap-1928	150	28	imprinted	imprint	VERB
ap-1928	150	29	onto	onto	ADP
ap-1928	150	30	the	the	DET
ap-1928	150	31	γ	γ	PROPN
ap-1928	150	32	-	-	PUNCT
ap-1928	150	33	ray	ray	NOUN
ap-1928	150	34	spectra	spectra	NOUN
ap-1928	150	35	,	,	PUNCT
ap-1928	150	36	with	with	ADP
ap-1928	150	37	the	the	DET
ap-1928	150	38	possibility	possibility	NOUN
ap-1928	150	39	of	of	ADP
ap-1928	150	40	a	a	DET
ap-1928	150	41	spectral	spectral	ADJ
ap-1928	150	42	hardening	hardening	NOUN
ap-1928	150	43	or	or	CCONJ
ap-1928	150	44	softening	soften	VERB
ap-1928	150	45	around	around	ADP
ap-1928	150	46	1tev	1tev	NUM
ap-1928	150	47	,	,	PUNCT
ap-1928	150	48	while	while	SCONJ
ap-1928	150	49	the	the	DET
ap-1928	150	50	nonobservations	nonobservation	NOUN
ap-1928	150	51	provide	provide	VERB
ap-1928	150	52	an	an	DET
ap-1928	150	53	unambiguous	unambiguous	ADJ
ap-1928	150	54	constraint	constraint	NOUN
ap-1928	150	55	on	on	ADP
ap-1928	150	56	639	639	NUM
ap-1928	150	57	frank	frank	PROPN
ap-1928	150	58	krennrich	krennrich	PROPN
ap-1928	150	59	acta	acta	PROPN
ap-1928	150	60	polytechnica	polytechnica	PROPN
ap-1928	150	61	the	the	DET
ap-1928	150	62	near	near	ADJ
ap-1928	150	63	/	/	SYM
ap-1928	150	64	mid	mid	NOUN
ap-1928	150	65	-	-	PROPN
ap-1928	150	66	ir	ir	ADJ
ap-1928	150	67	ratio	ratio	NOUN
ap-1928	150	68	.	.	PUNCT
ap-1928	151	1	the	the	DET
ap-1928	151	2	result	result	NOUN
ap-1928	151	3	from	from	ADP
ap-1928	151	4	this	this	DET
ap-1928	151	5	analysis	analysis	NOUN
ap-1928	151	6	combined	combine	VERB
ap-1928	151	7	with	with	ADP
ap-1928	151	8	fermi	fermi	PROPN
ap-1928	151	9	act	act	PROPN
ap-1928	151	10	spectra	spectra	PROPN
ap-1928	151	11	has	have	AUX
ap-1928	151	12	resulted	result	VERB
ap-1928	151	13	in	in	ADP
ap-1928	151	14	the	the	DET
ap-1928	151	15	limits	limit	NOUN
ap-1928	151	16	and	and	CCONJ
ap-1928	151	17	ebl	ebl	NOUN
ap-1928	151	18	constraints	constraint	NOUN
ap-1928	151	19	shown	show	VERB
ap-1928	151	20	in	in	ADP
ap-1928	151	21	fig	fig	NOUN
ap-1928	151	22	.	.	PUNCT
ap-1928	152	1	9	9	X
ap-1928	152	2	.	.	X
ap-1928	152	3	in	in	ADP
ap-1928	152	4	summary	summary	NOUN
ap-1928	152	5	,	,	PUNCT
ap-1928	152	6	ebl	ebl	PROPN
ap-1928	152	7	limits	limit	NOUN
ap-1928	152	8	derived	derive	VERB
ap-1928	152	9	from	from	ADP
ap-1928	152	10	γ	γ	PROPN
ap-1928	152	11	-	-	PUNCT
ap-1928	152	12	ray	ray	NOUN
ap-1928	152	13	observations	observation	NOUN
ap-1928	152	14	suggest	suggest	VERB
ap-1928	152	15	a	a	DET
ap-1928	152	16	low	low	ADJ
ap-1928	152	17	intensity	intensity	NOUN
ap-1928	152	18	in	in	ADP
ap-1928	152	19	the	the	DET
ap-1928	152	20	near	near	NOUN
ap-1928	152	21	to	to	ADP
ap-1928	152	22	mid	mid	NOUN
ap-1928	152	23	-	-	PROPN
ap-1928	152	24	ir	ir	PROPN
ap-1928	152	25	and	and	CCONJ
ap-1928	152	26	are	be	AUX
ap-1928	152	27	compatible	compatible	ADJ
ap-1928	152	28	with	with	ADP
ap-1928	152	29	lower	low	ADJ
ap-1928	152	30	limits	limit	NOUN
ap-1928	152	31	from	from	ADP
ap-1928	152	32	galaxy	galaxy	NOUN
ap-1928	152	33	counts	count	NOUN
ap-1928	152	34	.	.	PUNCT
ap-1928	153	1	these	these	DET
ap-1928	153	2	γ	γ	PROPN
ap-1928	153	3	-	-	PUNCT
ap-1928	153	4	ray	ray	NOUN
ap-1928	153	5	limits	limit	NOUN
ap-1928	153	6	are	be	AUX
ap-1928	153	7	based	base	VERB
ap-1928	153	8	on	on	ADP
ap-1928	153	9	known	know	VERB
ap-1928	153	10	physical	physical	ADJ
ap-1928	153	11	processes	process	NOUN
ap-1928	153	12	.	.	PUNCT
ap-1928	154	1	i.e.	i.e.	X
ap-1928	154	2	,	,	PUNCT
ap-1928	154	3	primary	primary	ADJ
ap-1928	154	4	γ	γ	NOUN
ap-1928	154	5	-	-	PUNCT
ap-1928	154	6	rays	ray	NOUN
ap-1928	154	7	traveling	travel	VERB
ap-1928	154	8	from	from	ADP
ap-1928	154	9	the	the	DET
ap-1928	154	10	source	source	NOUN
ap-1928	154	11	to	to	ADP
ap-1928	154	12	the	the	DET
ap-1928	154	13	observer	observer	NOUN
ap-1928	154	14	and	and	CCONJ
ap-1928	154	15	primarily	primarily	ADV
ap-1928	154	16	affected	affect	VERB
ap-1928	154	17	by	by	ADP
ap-1928	154	18	pair	pair	NOUN
ap-1928	154	19	production	production	NOUN
ap-1928	154	20	as	as	SCONJ
ap-1928	154	21	suggested	suggest	VERB
ap-1928	154	22	by	by	ADP
ap-1928	154	23	gould	gould	PROPN
ap-1928	154	24	&	&	CCONJ
ap-1928	154	25	schréder	schréder	PROPN
ap-1928	155	1	[	[	X
ap-1928	155	2	18	18	NUM
ap-1928	155	3	]	]	PUNCT
ap-1928	155	4	.	.	PUNCT
ap-1928	156	1	they	they	PRON
ap-1928	156	2	are	be	AUX
ap-1928	156	3	valid	valid	ADJ
ap-1928	156	4	unless	unless	SCONJ
ap-1928	156	5	,	,	PUNCT
ap-1928	156	6	indeed	indeed	ADV
ap-1928	156	7	new	new	ADJ
ap-1928	156	8	physical	physical	ADJ
ap-1928	156	9	processes	process	NOUN
ap-1928	156	10	,	,	PUNCT
ap-1928	156	11	e.g.	e.g.	ADV
ap-1928	156	12	,	,	PUNCT
ap-1928	156	13	the	the	DET
ap-1928	156	14	development	development	NOUN
ap-1928	156	15	of	of	ADP
ap-1928	156	16	intergalactic	intergalactic	ADJ
ap-1928	156	17	cascades	cascade	NOUN
ap-1928	156	18	or	or	CCONJ
ap-1928	156	19	new	new	ADJ
ap-1928	156	20	physics	physic	NOUN
ap-1928	156	21	such	such	ADJ
ap-1928	156	22	as	as	ADP
ap-1928	156	23	photon	photon	NOUN
ap-1928	156	24	mixing	mix	VERB
ap-1928	156	25	with	with	ADP
ap-1928	156	26	axion	axion	NOUN
ap-1928	156	27	-	-	PUNCT
ap-1928	156	28	like	like	ADJ
ap-1928	156	29	particles	particle	NOUN
ap-1928	156	30	–	–	PUNCT
ap-1928	156	31	are	be	AUX
ap-1928	156	32	demonstrated	demonstrate	VERB
ap-1928	156	33	to	to	PART
ap-1928	156	34	occur	occur	VERB
ap-1928	156	35	.	.	PUNCT
ap-1928	157	1	acknowledgements	acknowledgement	NOUN
ap-1928	157	2	fk	fk	INTJ
ap-1928	157	3	acknowledges	acknowledge	VERB
ap-1928	157	4	support	support	NOUN
ap-1928	157	5	from	from	ADP
ap-1928	157	6	doe	doe	NOUN
ap-1928	157	7	and	and	CCONJ
ap-1928	157	8	from	from	ADP
ap-1928	157	9	the	the	DET
ap-1928	157	10	fermi	fermi	NOUN
ap-1928	157	11	cycle-4	cycle-4	NUM
ap-1928	157	12	guest	guest	NOUN
ap-1928	157	13	investigator	investigator	NOUN
ap-1928	157	14	program	program	NOUN
ap-1928	157	15	.	.	PUNCT
ap-1928	158	1	furthermore	furthermore	ADV
ap-1928	158	2	,	,	PUNCT
ap-1928	158	3	i	i	PRON
ap-1928	158	4	am	be	AUX
ap-1928	158	5	grateful	grateful	ADJ
ap-1928	158	6	to	to	ADP
ap-1928	158	7	a.	a.	PROPN
ap-1928	158	8	weinstein	weinstein	PROPN
ap-1928	158	9	for	for	ADP
ap-1928	158	10	reading	read	VERB
ap-1928	158	11	the	the	DET
ap-1928	158	12	manuscript	manuscript	NOUN
ap-1928	158	13	.	.	PUNCT
ap-1928	159	1	references	reference	NOUN
ap-1928	159	2	[	[	X
ap-1928	159	3	1	1	NUM
ap-1928	159	4	]	]	X
ap-1928	159	5	abdo	abdo	PROPN
ap-1928	159	6	,	,	PUNCT
ap-1928	159	7	a.a	a.a	PROPN
ap-1928	159	8	.	.	PROPN
ap-1928	159	9	et	et	PROPN
ap-1928	159	10	al	al	PROPN
ap-1928	159	11	.	.	PROPN
ap-1928	159	12	:	:	PUNCT
ap-1928	159	13	2011	2011	NUM
ap-1928	159	14	,	,	PUNCT
ap-1928	159	15	apj	apj	PROPN
ap-1928	159	16	,	,	PUNCT
ap-1928	159	17	734	734	NUM
ap-1928	159	18	,	,	PUNCT
ap-1928	159	19	28	28	NUM
ap-1928	160	1	[	[	X
ap-1928	160	2	2	2	NUM
ap-1928	160	3	]	]	PUNCT
ap-1928	160	4	acciari	acciari	X
ap-1928	160	5	,	,	PUNCT
ap-1928	160	6	v.a	v.a	PROPN
ap-1928	160	7	.	.	PROPN
ap-1928	160	8	et	et	PROPN
ap-1928	160	9	al	al	PROPN
ap-1928	160	10	.	.	PROPN
ap-1928	160	11	:	:	PUNCT
ap-1928	160	12	2009	2009	NUM
ap-1928	160	13	,	,	PUNCT
ap-1928	160	14	nature	nature	NOUN
ap-1928	160	15	,	,	PUNCT
ap-1928	160	16	462	462	NUM
ap-1928	160	17	,	,	PUNCT
ap-1928	160	18	770	770	NUM
ap-1928	161	1	[	[	X
ap-1928	161	2	3	3	NUM
ap-1928	161	3	]	]	PUNCT
ap-1928	161	4	acciari	acciari	X
ap-1928	161	5	,	,	PUNCT
ap-1928	161	6	v.a	v.a	PROPN
ap-1928	161	7	.	.	PROPN
ap-1928	161	8	et	et	PROPN
ap-1928	161	9	al	al	PROPN
ap-1928	161	10	.	.	PROPN
ap-1928	161	11	:	:	PUNCT
ap-1928	162	1	2011	2011	NUM
ap-1928	162	2	,	,	PUNCT
ap-1928	162	3	apjl	apjl	NOUN
ap-1928	162	4	,	,	PUNCT
ap-1928	162	5	730	730	NUM
ap-1928	162	6	,	,	PUNCT
ap-1928	162	7	l20	l20	NOUN
ap-1928	162	8	[	[	X
ap-1928	162	9	4	4	NUM
ap-1928	162	10	]	]	X
ap-1928	162	11	acero	acero	PROPN
ap-1928	162	12	,	,	PUNCT
ap-1928	162	13	f.	f.	PROPN
ap-1928	162	14	et	et	PROPN
ap-1928	162	15	al	al	PROPN
ap-1928	162	16	.	.	PROPN
ap-1928	162	17	:	:	PUNCT
ap-1928	162	18	2009	2009	NUM
ap-1928	162	19	,	,	PUNCT
ap-1928	162	20	science	science	NOUN
ap-1928	162	21	,	,	PUNCT
ap-1928	162	22	326	326	NUM
ap-1928	162	23	,	,	PUNCT
ap-1928	162	24	1080	1080	NUM
ap-1928	163	1	[	[	X
ap-1928	163	2	5	5	NUM
ap-1928	163	3	]	]	PUNCT
ap-1928	163	4	actis	actis	PROPN
ap-1928	163	5	,	,	PUNCT
ap-1928	163	6	m.	m.	NOUN
ap-1928	163	7	et	et	PROPN
ap-1928	163	8	al	al	PROPN
ap-1928	163	9	.	.	PROPN
ap-1928	163	10	:	:	PUNCT
ap-1928	164	1	2010	2010	NUM
ap-1928	164	2	,	,	PUNCT
ap-1928	164	3	arxiv:1008.3703v3	arxiv:1008.3703v3	NOUN
ap-1928	165	1	[	[	X
ap-1928	165	2	6	6	NUM
ap-1928	165	3	]	]	PUNCT
ap-1928	165	4	aharonian	aharonian	ADJ
ap-1928	165	5	,	,	PUNCT
ap-1928	165	6	f.a	f.a	PROPN
ap-1928	165	7	.	.	PROPN
ap-1928	165	8	et	et	PROPN
ap-1928	165	9	al	al	PROPN
ap-1928	165	10	.	.	PROPN
ap-1928	165	11	:	:	PUNCT
ap-1928	166	1	2006	2006	NUM
ap-1928	166	2	,	,	PUNCT
ap-1928	166	3	nature	nature	NOUN
ap-1928	166	4	,	,	PUNCT
ap-1928	166	5	440	440	NUM
ap-1928	166	6	,	,	PUNCT
ap-1928	166	7	1018	1018	NUM
ap-1928	166	8	[	[	X
ap-1928	166	9	7	7	NUM
ap-1928	166	10	]	]	PUNCT
ap-1928	166	11	aharonian	aharonian	ADJ
ap-1928	166	12	,	,	PUNCT
ap-1928	166	13	f.a	f.a	PROPN
ap-1928	166	14	.	.	PROPN
ap-1928	166	15	et	et	PROPN
ap-1928	166	16	al	al	PROPN
ap-1928	166	17	.	.	PROPN
ap-1928	166	18	:	:	PUNCT
ap-1928	166	19	2007	2007	NUM
ap-1928	166	20	,	,	PUNCT
ap-1928	166	21	a&a	a&a	PROPN
ap-1928	166	22	,	,	PUNCT
ap-1928	166	23	464	464	NUM
ap-1928	166	24	,	,	PUNCT
ap-1928	166	25	235	235	NUM
ap-1928	167	1	[	[	SYM
ap-1928	167	2	8	8	NUM
ap-1928	167	3	]	]	X
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ap-1928	167	5	,	,	PUNCT
ap-1928	167	6	a.	a.	PROPN
ap-1928	167	7	&	&	CCONJ
ap-1928	167	8	dermer	dermer	PROPN
ap-1928	167	9	,	,	PUNCT
ap-1928	167	10	c.d	c.d	PROPN
ap-1928	167	11	.	.	PROPN
ap-1928	167	12	:	:	PUNCT
ap-1928	167	13	2012	2012	NUM
ap-1928	167	14	,	,	PUNCT
ap-1928	167	15	apj	apj	PROPN
ap-1928	167	16	,	,	PUNCT
ap-1928	167	17	749	749	NUM
ap-1928	167	18	,	,	PUNCT
ap-1928	167	19	l26	l26	VERB
ap-1928	167	20	[	[	X
ap-1928	167	21	9	9	NUM
ap-1928	167	22	]	]	X
ap-1928	167	23	cassam	cassam	NOUN
ap-1928	167	24	-	-	PUNCT
ap-1928	167	25	chenai	chenai	NOUN
ap-1928	167	26	,	,	PUNCT
ap-1928	167	27	g.	g.	PROPN
ap-1928	167	28	et	et	PROPN
ap-1928	167	29	al	al	PROPN
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ap-1928	168	7	315	315	NUM
ap-1928	168	8	[	[	SYM
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ap-1928	168	10	]	]	X
ap-1928	168	11	drury	drury	PROPN
ap-1928	168	12	,	,	PUNCT
ap-1928	168	13	l.c	l.c	PROPN
ap-1928	168	14	.	.	PROPN
ap-1928	168	15	,	,	PUNCT
ap-1928	168	16	aharonian	aharonian	ADJ
ap-1928	168	17	,	,	PUNCT
ap-1928	168	18	f.a	f.a	PROPN
ap-1928	168	19	.	.	PROPN
ap-1928	168	20	&	&	CCONJ
ap-1928	168	21	völk	völk	VERB
ap-1928	168	22	,	,	PUNCT
ap-1928	168	23	h.	h.	PROPN
ap-1928	168	24	:	:	PUNCT
ap-1928	168	25	1994	1994	NUM
ap-1928	168	26	,	,	PUNCT
ap-1928	168	27	a&a	a&a	PROPN
ap-1928	168	28	,	,	PUNCT
ap-1928	168	29	285	285	NUM
ap-1928	168	30	,	,	PUNCT
ap-1928	168	31	645	645	NUM
ap-1928	168	32	[	[	SYM
ap-1928	168	33	11	11	NUM
ap-1928	168	34	]	]	PUNCT
ap-1928	168	35	dwek	dwek	PROPN
ap-1928	168	36	,	,	PUNCT
ap-1928	168	37	e.	e.	PROPN
ap-1928	168	38	&	&	CCONJ
ap-1928	168	39	krennrich	krennrich	PROPN
ap-1928	168	40	,	,	PUNCT
ap-1928	168	41	f.	f.	PROPN
ap-1928	168	42	:	:	PUNCT
ap-1928	168	43	2005	2005	NUM
ap-1928	168	44	,	,	PUNCT
ap-1928	168	45	apj	apj	PROPN
ap-1928	168	46	,	,	PUNCT
ap-1928	168	47	618	618	NUM
ap-1928	168	48	,	,	PUNCT
ap-1928	168	49	657	657	NUM
ap-1928	168	50	[	[	X
ap-1928	168	51	12	12	NUM
ap-1928	168	52	]	]	PUNCT
ap-1928	168	53	dwek	dwek	PROPN
ap-1928	168	54	,	,	PUNCT
ap-1928	168	55	e.	e.	PROPN
ap-1928	168	56	&	&	CCONJ
ap-1928	168	57	krennrich	krennrich	PROPN
ap-1928	168	58	,	,	PUNCT
ap-1928	168	59	f.	f.	PROPN
ap-1928	168	60	:	:	PUNCT
ap-1928	168	61	2012	2012	NUM
ap-1928	168	62	,	,	PUNCT
ap-1928	168	63	special	special	ADJ
ap-1928	168	64	issue	issue	NOUN
ap-1928	168	65	in	in	ADP
ap-1928	168	66	astropart	astropart	NOUN
ap-1928	168	67	.	.	PUNCT
ap-1928	169	1	phys	phy	NOUN
ap-1928	169	2	.	.	PUNCT
ap-1928	169	3	,	,	PUNCT
ap-1928	169	4	submitted	submit	VERB
ap-1928	169	5	[	[	X
ap-1928	169	6	13	13	NUM
ap-1928	169	7	]	]	PUNCT
ap-1928	169	8	essey	essey	PROPN
ap-1928	169	9	,	,	PUNCT
ap-1928	169	10	w.	w.	PROPN
ap-1928	169	11	&	&	CCONJ
ap-1928	169	12	kusenko	kusenko	PROPN
ap-1928	169	13	,	,	PUNCT
ap-1928	169	14	a.	a.	NOUN
ap-1928	169	15	:	:	PUNCT
ap-1928	169	16	2010	2010	NUM
ap-1928	169	17	,	,	PUNCT
ap-1928	169	18	astropart	astropart	NOUN
ap-1928	169	19	.	.	PROPN
ap-1928	169	20	,	,	PUNCT
ap-1928	169	21	phys	phy	NOUN
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ap-1928	170	1	33	33	NUM
ap-1928	170	2	,	,	PUNCT
ap-1928	170	3	81	81	NUM
ap-1928	170	4	[	[	SYM
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ap-1928	170	6	]	]	SYM
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ap-1928	170	8	,	,	PUNCT
ap-1928	170	9	y.	y.	PROPN
ap-1928	170	10	et	et	PROPN
ap-1928	170	11	al	al	PROPN
ap-1928	170	12	.	.	PROPN
ap-1928	170	13	:	:	PUNCT
ap-1928	170	14	2003	2003	NUM
ap-1928	170	15	,	,	PUNCT
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ap-1928	170	17	.	.	PUNCT
ap-1928	171	1	astron	astron	PROPN
ap-1928	171	2	.	.	PUNCT
ap-1928	171	3	soc	soc	PROPN
ap-1928	171	4	.	.	PUNCT
ap-1928	172	1	jpn	jpn	PROPN
ap-1928	172	2	,	,	PUNCT
ap-1928	172	3	55	55	NUM
ap-1928	172	4	,	,	PUNCT
ap-1928	172	5	l61	l61	X
ap-1928	173	1	[	[	X
ap-1928	173	2	15	15	NUM
ap-1928	173	3	]	]	X
ap-1928	173	4	fumagalli	fumagalli	NOUN
ap-1928	173	5	,	,	PUNCT
ap-1928	173	6	m.	m.	NOUN
ap-1928	173	7	et	et	PROPN
ap-1928	173	8	al	al	PROPN
ap-1928	173	9	.	.	PROPN
ap-1928	173	10	:	:	PUNCT
ap-1928	173	11	2012	2012	NUM
ap-1928	173	12	,	,	PUNCT
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ap-1928	173	14	[	[	X
ap-1928	173	15	16	16	NUM
ap-1928	173	16	]	]	PUNCT
ap-1928	173	17	funk	funk	NOUN
ap-1928	173	18	,	,	PUNCT
ap-1928	173	19	s.	s.	PROPN
ap-1928	173	20	:	:	PUNCT
ap-1928	173	21	2012	2012	NUM
ap-1928	173	22	,	,	PUNCT
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ap-1928	174	1	[	[	X
ap-1928	174	2	17	17	NUM
ap-1928	174	3	]	]	X
ap-1928	174	4	giordano	giordano	PROPN
ap-1928	174	5	et	et	PROPN
ap-1928	174	6	al	al	PROPN
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ap-1928	174	8	:	:	PUNCT
ap-1928	174	9	2012	2012	NUM
ap-1928	174	10	,	,	PUNCT
ap-1928	174	11	apjl	apjl	NOUN
ap-1928	174	12	,	,	PUNCT
ap-1928	174	13	744	744	NUM
ap-1928	174	14	,	,	PUNCT
ap-1928	174	15	l2	l2	NOUN
ap-1928	174	16	[	[	X
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ap-1928	174	18	]	]	SYM
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ap-1928	174	20	,	,	PUNCT
ap-1928	174	21	r.	r.	PROPN
ap-1928	174	22	j.	j.	PROPN
ap-1928	174	23	&	&	CCONJ
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ap-1928	174	25	,	,	PUNCT
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ap-1928	174	27	p.	p.	NOUN
ap-1928	174	28	:	:	PUNCT
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ap-1928	174	30	,	,	PUNCT
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ap-1928	174	32	.	.	PUNCT
ap-1928	175	1	rev	rev	PROPN
ap-1928	175	2	.	.	PROPN
ap-1928	175	3	,	,	PUNCT
ap-1928	175	4	155	155	NUM
ap-1928	175	5	,	,	PUNCT
ap-1928	175	6	1404	1404	NUM
ap-1928	175	7	[	[	X
ap-1928	175	8	19	19	NUM
ap-1928	175	9	]	]	X
ap-1928	175	10	heyer	heyer	PROPN
ap-1928	175	11	,	,	PUNCT
ap-1928	175	12	m.	m.	PROPN
ap-1928	175	13	h.	h.	PROPN
ap-1928	175	14	et	et	PROPN
ap-1928	175	15	al	al	PROPN
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ap-1928	175	17	:	:	PUNCT
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ap-1928	176	6	,	,	PUNCT
ap-1928	176	7	241	241	NUM
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ap-1928	176	9	20	20	NUM
ap-1928	176	10	]	]	PUNCT
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ap-1928	176	12	,	,	PUNCT
ap-1928	176	13	j.	j.	PROPN
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ap-1928	176	15	2012	2012	NUM
ap-1928	176	16	,	,	PUNCT
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ap-1928	177	1	[	[	X
ap-1928	177	2	21	21	NUM
ap-1928	177	3	]	]	X
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ap-1928	177	12	,	,	PUNCT
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ap-1928	177	30	et	et	PROPN
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ap-1928	177	33	:	:	PUNCT
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ap-1928	178	3	]	]	X
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ap-1928	178	5	,	,	PUNCT
ap-1928	178	6	h.	h.	PROPN
ap-1928	178	7	:	:	PUNCT
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ap-1928	178	13	,	,	PUNCT
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ap-1928	178	15	[	[	X
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ap-1928	178	22	raue	raue	PROPN
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ap-1928	178	24	m.	m.	NOUN
ap-1928	178	25	:	:	PUNCT
ap-1928	178	26	2007	2007	NUM
ap-1928	178	27	,	,	PUNCT
ap-1928	178	28	a&a	a&a	PROPN
ap-1928	178	29	,	,	PUNCT
ap-1928	178	30	471	471	NUM
ap-1928	178	31	,	,	PUNCT
ap-1928	178	32	439	439	NUM
ap-1928	178	33	[	[	X
ap-1928	178	34	25	25	NUM
ap-1928	178	35	]	]	X
ap-1928	178	36	orr	orr	PROPN
ap-1928	178	37	,	,	PUNCT
ap-1928	178	38	m.	m.	NOUN
ap-1928	178	39	et	et	PROPN
ap-1928	178	40	al	al	PROPN
ap-1928	178	41	.	.	PUNCT
ap-1928	178	42	:	:	PUNCT
ap-1928	179	1	2011	2011	NUM
ap-1928	179	2	,	,	PUNCT
ap-1928	179	3	apj	apj	PROPN
ap-1928	179	4	,	,	PUNCT
ap-1928	179	5	733	733	NUM
ap-1928	179	6	,	,	PUNCT
ap-1928	179	7	77	77	NUM
ap-1928	180	1	[	[	SYM
ap-1928	180	2	26	26	NUM
ap-1928	180	3	]	]	X
ap-1928	180	4	sanchez	sanchez	PROPN
ap-1928	180	5	-	-	PUNCT
ap-1928	180	6	conde	conde	PROPN
ap-1928	180	7	,	,	PUNCT
ap-1928	180	8	m.a	m.a	PROPN
ap-1928	180	9	.	.	PROPN
ap-1928	180	10	et	et	PROPN
ap-1928	180	11	al	al	PROPN
ap-1928	180	12	.	.	PROPN
ap-1928	180	13	:	:	PUNCT
ap-1928	180	14	2009	2009	NUM
ap-1928	180	15	,	,	PUNCT
ap-1928	180	16	phys	phy	NOUN
ap-1928	180	17	.	.	PUNCT
ap-1928	180	18	rev	rev	PROPN
ap-1928	180	19	.	.	PUNCT
ap-1928	181	1	d79:123511	d79:123511	PROPN
ap-1928	181	2	[	[	X
ap-1928	181	3	27	27	NUM
ap-1928	181	4	]	]	PUNCT
ap-1928	181	5	schwarzschild	schwarzschild	NOUN
ap-1928	181	6	,	,	PUNCT
ap-1928	181	7	b.	b.	PROPN
ap-1928	181	8	:	:	PUNCT
ap-1928	181	9	2010	2010	NUM
ap-1928	181	10	,	,	PUNCT
ap-1928	181	11	physics	physics	NOUN
ap-1928	181	12	today	today	NOUN
ap-1928	181	13	,	,	PUNCT
ap-1928	181	14	vol	vol	NOUN
ap-1928	181	15	.	.	PROPN
ap-1928	181	16	63	63	NUM
ap-1928	181	17	,	,	PUNCT
ap-1928	181	18	issue	issue	NOUN
ap-1928	181	19	1	1	NUM
ap-1928	181	20	[	[	X
ap-1928	181	21	28	28	NUM
ap-1928	181	22	]	]	X
ap-1928	181	23	uchiyama	uchiyama	NOUN
ap-1928	181	24	,	,	PUNCT
ap-1928	181	25	y.	y.	PROPN
ap-1928	181	26	et	et	PROPN
ap-1928	181	27	al	al	PROPN
ap-1928	181	28	.	.	PROPN
ap-1928	181	29	:	:	PUNCT
ap-1928	181	30	2002	2002	NUM
ap-1928	181	31	,	,	PUNCT
ap-1928	181	32	pasj	pasj	PROPN
ap-1928	181	33	,	,	PUNCT
ap-1928	181	34	54	54	NUM
ap-1928	181	35	,	,	PUNCT
ap-1928	181	36	l73	l73	NOUN
ap-1928	181	37	[	[	X
ap-1928	181	38	29	29	NUM
ap-1928	181	39	]	]	PUNCT
ap-1928	181	40	völk	völk	NOUN
ap-1928	181	41	,	,	PUNCT
ap-1928	181	42	h.j	h.j	PROPN
ap-1928	181	43	.	.	PROPN
ap-1928	181	44	,	,	PUNCT
ap-1928	181	45	et	et	PROPN
ap-1928	181	46	al	al	PROPN
ap-1928	181	47	.	.	PROPN
ap-1928	181	48	:	:	PUNCT
ap-1928	181	49	1996	1996	NUM
ap-1928	181	50	,	,	PUNCT
ap-1928	181	51	space	space	NOUN
ap-1928	181	52	science	science	NOUN
ap-1928	181	53	reviews	review	NOUN
ap-1928	181	54	,	,	PUNCT
ap-1928	181	55	75	75	NUM
ap-1928	181	56	,	,	PUNCT
ap-1928	181	57	279	279	NUM
ap-1928	181	58	[	[	SYM
ap-1928	181	59	30	30	NUM
ap-1928	181	60	]	]	PUNCT
ap-1928	181	61	völk	völk	NOUN
ap-1928	181	62	,	,	PUNCT
ap-1928	181	63	h.j	h.j	PROPN
ap-1928	181	64	.	.	PROPN
ap-1928	181	65	et	et	PROPN
ap-1928	181	66	al	al	PROPN
ap-1928	181	67	.	.	PROPN
ap-1928	181	68	:	:	PUNCT
ap-1928	181	69	2008	2008	NUM
ap-1928	181	70	.	.	PUNCT
ap-1928	182	1	a&a	a&a	PROPN
ap-1928	182	2	,	,	PUNCT
ap-1928	182	3	483	483	NUM
ap-1928	182	4	,	,	PUNCT
ap-1928	182	5	529	529	NUM
ap-1928	182	6	[	[	X
ap-1928	182	7	31	31	NUM
ap-1928	182	8	]	]	PUNCT
ap-1928	182	9	weekes	weekes	PROPN
ap-1928	182	10	,	,	PUNCT
ap-1928	182	11	t.c	t.c	PROPN
ap-1928	182	12	.	.	PROPN
ap-1928	182	13	:	:	PUNCT
ap-1928	182	14	2009	2009	NUM
ap-1928	182	15	,	,	PUNCT
ap-1928	182	16	american	american	PROPN
ap-1928	182	17	institute	institute	PROPN
ap-1928	182	18	of	of	ADP
ap-1928	182	19	physics	physics	PROPN
ap-1928	182	20	conf	conf	PROPN
ap-1928	182	21	.	.	PUNCT
ap-1928	183	1	proc	proc	PROPN
ap-1928	183	2	.	.	PROPN
ap-1928	183	3	,	,	PUNCT
ap-1928	183	4	1085	1085	NUM
ap-1928	183	5	,	,	PUNCT
ap-1928	183	6	3	3	NUM
ap-1928	183	7	640	640	NUM
ap-1928	183	8	acta	acta	PROPN
ap-1928	183	9	polytechnica	polytechnica	PROPN
ap-1928	183	10	53(supplement):635–640	53(supplement):635–640	NUM
ap-1928	183	11	,	,	PUNCT
ap-1928	183	12	2013	2013	NUM
ap-1928	183	13	1	1	NUM
ap-1928	183	14	introduction	introduction	NOUN
ap-1928	183	15	2	2	NUM
ap-1928	183	16	cosmic	cosmic	ADJ
ap-1928	183	17	ray	ray	NOUN
ap-1928	183	18	origin	origin	NOUN
ap-1928	183	19	2.1	2.1	NUM
ap-1928	183	20	individual	individual	NOUN
ap-1928	183	21	supernova	supernova	NOUN
ap-1928	183	22	remnants	remnant	NOUN
ap-1928	183	23	2.2	2.2	NUM
ap-1928	183	24	starburst	starburst	NOUN
ap-1928	183	25	galaxies	galaxy	NOUN
ap-1928	183	26	3	3	NUM
ap-1928	183	27	the	the	DET
ap-1928	183	28	opacity	opacity	NOUN
ap-1928	183	29	of	of	ADP
ap-1928	183	30	the	the	DET
ap-1928	183	31	universe	universe	NOUN
ap-1928	183	32	in	in	ADP
ap-1928	183	33	gamma	gamma	NOUN
ap-1928	183	34	-	-	PUNCT
ap-1928	183	35	rays	ray	NOUN
ap-1928	183	36	acknowledgements	acknowledgement	NOUN
ap-1928	183	37	references	reference	NOUN