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

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