Observations of the BL Lacertae object 3C 66A with STACEE

被引：44

作者：

Bramel, DA

Carson, J

Covault, CE

Fortin, P

Gingrich, DM

Hanna, DS

Jarvis, A

Kildea, J

Lindner, T

Mukherjee, R

Mueller, C

Ong, RA

Ragan, K

Scalzo, RA

Williams, DA

Zweerink, J

机构：

[1] Columbia Univ, Dept Phys, New York, NY 10027 USA

[2] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[3] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA

[4] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[5] Univ Alberta, Ctr Subatom Res, Edmonton, AB T6G 2N5, Canada

[6] TRIUMF, Vancouver, BC V6T 2A3, Canada

[7] Columbia Univ Barnard Coll, Dept Phys & Astron, New York, NY 10027 USA

[8] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA

来源：

ASTROPHYSICAL JOURNAL | 2005年 / 629卷 / 01期

关键词：

BL Lacertae objects : individual (3C 66A); galaxies : active; gamma rays : observations;

D O I：

10.1086/431294

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the analysis and results of recent high-energy gamma-ray observations of the BL Lac object 3C 66A conducted with the Solar Tower Atmospheric Cerenkov Effect Experiment (STACEE). During the 2003-2004 observing season, STACEE extensively observed 3C 66A as part of a multiwavelength campaign on the source. A total of 33.7 hr of data was taken on the source, plus an equivalent-duration background observation. After cleaning the data set a total of 16.3 hr of live time remained, and a net on-source excess of 1134 events was seen against a background of 231,742 events. At a significance of 2.2 sigma this excess is insufficient to claim a detection of 3C 66A but is used to establish flux upper limits for the source.

引用

页码：108 / 114

页数：7

共 48 条

[1] Observations of 54 active galactic nuclei with the HEGRA system of Cherenkov telescopes
Aharonian, F
Akhperjanian, A
Beilicke, M
Bernlöhr, K
Börst, HG
Bojahr, H
Bolz, O
Coarasa, T
Contreras, JL
Cortina, J
Denninghoff, S
Fonseca, V
Girma, M
Götting, N
Heinzelmann, G
Hermann, G
Heusler, A
Hofmann, W
Horns, D
Jung, I
Kankanyan, R
Kestel, M
Mang, O
Mazin, D
Meyer, H
Mirzoyan, R
Moralejo, A
Ona-Wilhelmi, E
Panter, M
Plyasheshnikov, A
Pühlhofer, G
de los Reyes, R
Rhode, W
Ripken, J
Rowell, G
Sahakian, V
Samorski, M
Schilling, M
Siems, M
Sobzynska, D
Stamm, W
Tluczykont, M
Vitale, V
Völk, HJ
Wiedner, CA
Wittek, W
[J]. ASTRONOMY & ASTROPHYSICS, 2004, 421 (02): : 529 - 537
[2] Aharonian FA, 2000, ASTRON ASTROPHYS, V353, P847
[3] BOETTCHER M, 2004, HEAD, V8
[4] STACEE observations of Markarian 421 during an extended gamma-ray outburst
Boone, LM
Hinton, JA
Bramel, D
Chae, E
Covault, CE
Fortin, P
Gingrich, DM
Hanna, DS
Mukherjee, R
Mueller, C
Ong, RA
Ragan, K
Scalzo, RA
Schuette, DR
Théoret, CG
Williams, DA
[J]. ASTROPHYSICAL JOURNAL, 2002, 579 (01) : L5 - L8
[5] Modeling the multiwavelength spectra and variability of BL Lacertae in 2000
Böttcher, M
Reimer, A
[J]. ASTROPHYSICAL JOURNAL, 2004, 609 (02) : 576 - 588
[6] X-ray spectral variability signatures of flares in BL Lacertae objects
Böttcher, M
Chiang, J
[J]. ASTROPHYSICAL JOURNAL, 2002, 581 (01) : 127 - 142
[7] Predictions of the high-energy emission from BL Lacertae objects:: The case of W Comae
Böttcher, M
Mukherjee, R
Reimer, A
[J]. ASTROPHYSICAL JOURNAL, 2002, 581 (01) : 143 - 154
[8] BOTTCHER M, 2005, IN PRESS APJ
[9] BRAMEL D, 2005, THESIS COLUMBIA U
[10] Prototype test results of the solar tower atmospheric Cherenkov effect experiment (STACEE)
Chantell, MC
Bhattacharya, D
Covault, CE
Dragovan, M
Fernholz, R
Gregorich, DT
Hanna, DS
Marion, GH
Ong, RA
Oser, S
Tumer, TO
Williams, DA
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1998, 408 (2-3) : 468 - 485

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