The first Swift bat gamma-ray burst catalog

被引：163

作者：

Sakamoto, T. ^{[1
,2
]}

Barthelmy, S. D. ^{[1
]}

Barbier, L. ^{[1
]}

Cummings, J. R. ^{[1
,3
]}

Fenimore, E. E. ^{[4
]}

Gehrels, N. ^{[1
]}

Hullinger, D. ^{[5
]}

Krimm, H. A. ^{[1
,6
]}

Markwardt, C. B. ^{[1
,7
]}

Palmer, D. M. ^{[4
]}

Parsons, A. M. ^{[1
]}

Sato, G. ^{[1
,8
]}

Stamatikos, M. ^{[1
,2
]}

Tueller, J. ^{[1
]}

Ukwatta, T. N. ^{[1
,9
]}

Zhang, B. ^{[10
]}

机构：

[1] NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD 20771 USA

[2] Oak Ridge Associated Univ, Oak Ridge, TN 37831 USA

[3] Univ Maryland, Joint Ctr Astrophys, Baltimore, MD 21250 USA

[4] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[5] Moxtek Inc, Orem, UT 84057 USA

[6] Univ Space Res Assoc, Columbia, MD 21044 USA

[7] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[8] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan

[9] George Washington Univ, Dept Phys, Ctr Nucl Studies, Washington, DC 20052 USA

[10] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2008年 / 175卷 / 01期

关键词：

gamma rays : bursts;

D O I：

10.1086/523646

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the first Swift Burst Alert Telescope (BAT) catalog of gamma-ray bursts (GRBs), which contains bursts detected by the BAT between 2004 December 19 and 2007 June 16. This catalog (hereafter the BAT1 catalog) contains burst trigger time, location, 90% error radius, duration, fluence, peak flux, and time-averaged spectral parameters for each of 237 GRBs, as measured by the BAT. The BAT-determined position reported here is within 1.75' of the Swift X-Ray Telescope (XRT)-determined position for 90% of these GRBs. The BAT T-90 and T-50 durations peak at 80 and 20 s, respectively. From the fluence-fluence correlation, we conclude that about 60% of the observed peak energies, E-peak(obs), of BAT GRBs could be less than 100 keV. We confirm that GRB fluence to hardness and GRB peak flux to hardness are correlated for BAT bursts in analogous ways to previous missions' results. The correlation between the photon index in a simple power-law model and E-peak(obs) is also confirmed. We also report the current status for the on-orbit BAT calibrations based on observations of the Crab Nebula.

引用

页码：179 / 190

页数：12

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