2012ApJ...759..102A

Query : 2012ApJ...759..102A

2012ApJ...759..102A - Astrophys. J., 759, 102 (2012/November-2)

VERITAS observations of six bright, hard-spectrum Fermi-LAT blazars.

ALIU E., ARCHAMBAULT S., ARLEN T., AUNE T., BEILICKE M., BENBOW W., BOTTCHER M., BOUVIER A., BUCKLEY J.H., BUGAEV V., CESARINI A., CIUPIK L., COLLINS-HUGHES E., CONNOLLY M.P., CUI W., DICKHERBER R., DUKE C., DUMM J., ERRANDO M., FALCONE A., FEDERICI S., FENG Q., FINLEY J.P., FINNEGAN G., FORTSON L., FURNISS A., GALANTE N., GALL D., GODAMBE S., GRIFFIN S., GRUBE J., GYUK G., HANNA D., HOLDER J., HUAN H., KAARET P., KARLSSON N., KHASSEN Y., KIEDA D., KRAWCZYNSKI H., KRENNRICH F., LEE K., MADHAVAN A.S., MAIER G., MAJUMDAR P., McARTHUR S., McCANN A., MORIARTY P., MUKHERJEE R., NELSON T., O'FAOLAIN DE BHROITHE A., ONG R.A., ORR M., OTTE A.N., PARK N., PERKINS J.S., PICHEL A., POHL M., PROKOPH H., QUINN J., RAGAN K., REYES L.C., REYNOLDS P.T., ROACHE E., SAXON D.B., SEMBROSKI G.H., STASZAK D., TELEZHINSKY I., TESIC G., THEILING M., THIBADEAU S., TSURUSAKI K., VARLOTTA A., VASSILIEV V.V., VINCENT S., VIVIER M., WAKELY S.P., WEEKES T.C., WEINSTEIN A., WELSING R., WILLIAMS D.A., ZITZER B. (The VERITAS Collaboration), FORTIN P., HORAN D., FUMAGALLI M., KAPLAN K. and PROCHASKA J.X.

Abstract (from CDS):

We report on VERITAS very high energy (VHE; E ≥ 100 GeV) observations of six blazars selected from the Fermi Large Area Telescope First Source Catalog (1FGL). The gamma-ray emission from 1FGL sources was extrapolated up to the VHE band, taking gamma-ray absorption by the extragalactic background light into account. This allowed the selection of six bright, hard-spectrum blazars that were good candidate TeV emitters. Spectroscopic redshift measurements were attempted with the Keck Telescope for the targets without Sloan Digital Sky Survey spectroscopic data. No VHE emission is detected during the observations of the six sources described here. Corresponding TeV upper limits are presented, along with contemporaneous Fermi observations and non-concurrent Swift UVOT and X-Ray Telescope data. The blazar broadband spectral energy distributions (SEDs) are assembled and modeled with a single-zone synchrotron self-Compton model. The SED built for each of the six blazars shows a synchrotron peak bordering between the intermediate- and high-spectrum-peak classifications, with four of the six resulting in particle-dominated emission regions.

Abstract Copyright: ∼

Journal keyword(s): BL Lacertae objects: general - gamma rays: galaxies

Simbad objects: 14

Full paper

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Number of rows : 14

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2026	#notes
1	RX J0035.8+5950	BLL	00 35 52.6448284115	+59 50 04.513482441			19.5	17.2	~	195	1
2	1RXS J013632.9+390556	BLL	01 36 32.5983798936	+39 05 59.199517428				15.5	~	146	2
3	3C 66A	BLL	02 22 39.6114771888	+43 02 07.799534304		15.71	15.21	14.5	~	942	2
4	RX J0316.1+0904	BLL	03 16 12.7326021672	+09 04 43.281750684				17.2	~	73	1
5	RX J0319.8+1845	BLL	03 19 51.8082475320	+18 45 34.562475432					~	223	1
6	RX J0648.7+1516	BLL	06 48 47.6488006968	+15 16 24.797585352				16.2	~	99	1
7	RX J0909.0+2311	BLL	09 09 00.6253772472	+23 11 12.975311832				16.7	~	70	1
8	ICRF J091042.1+224835	Bla	09 10 42.1337	+22 48 35.565		21.17	20.90	20.69	~	85	1
9	6dFGS gJ101016.0-311909	BLL	10 10 15.9790879224	-31 19 08.411407176		17.61		16.09	~	97	1
10	RX J1058.6+5628	BLL	10 58 37.7276569824	+56 28 11.207405028		16.80	16.31	14.58	~	232	1
11	Ton 116	BLL	12 43 12.7362011736	+36 27 43.997592204		17.41	17.11	16.4	~	112	1
12	3C 279	Bla	12 56 11.16657958	-05 47 21.5251510		18.01	17.75	15.87	~	3205	2
13	PG 1424+240	BLL	14 27 00.3917926224	+23 48 00.037510776	14.52	14.34	14.95	14.5	~	420	1
14	RX J1436.9+5639	BLL	14 36 57.7190885904	+56 39 24.859811736		18.92	18.51	17.6	~	83	0

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