BAT2 GRB Catalog - Prompt Emission Properties of Swift GRBs

被引：0
|
作者：
Sakamoto, T. [1 ,2 ,3 ]
Barthelmy, S. [3 ]
Baumgartner, W. [1 ,2 ,3 ]
Cummings, J. [1 ,2 ]
Fenimore, E. [4 ]
Gehrels, N. [3 ]
Krimm, H. [1 ,5 ]
Markwardt, C. [1 ,3 ,6 ]
Palmer, D. [4 ]
Parsons, A. [3 ]
Sato, G. [7 ]
Stamatikos, M. [8 ]
Tueller, J. [3 ]
Ukwatta, T. [9 ]
机构：
[1] CRESST, Greenbelt, MD 20771 USA
[2] Univ Maryland, Ctr Space Sci & Technol, Baltimore, MD 21250 USA
[3] NASA, Goddard Space Flight Ctr, Code 661, Greenbelt, MD 20771 USA
[4] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[5] Univ Space Res Associat, Columbia, MD 21044 USA
[6] Univ Maryland, Dept Astron, College Pk, MD 20742 USA
[7] JAXA Kanagawa, Inst Space & Astronut, Sagamihara, Kanagawa 2298510, Japan
[8] Ohio State Univ, Ctr Conmol & Astro Particle Phys, Dept Phys, Columbus, OH 43210 USA
[9] George Washington Univ, Ctr Nuclear Studies, Dept Phys, Washington, DC 20052 USA
来源：
DECIPHERING THE ANCIENT UNIVERSE WITH GAMMA-RAY BURSTS | 2010年 / 1279卷
关键词：
gamma ray: bursts;
D O I：
10.1063/1.3509266
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present the second Swift Burst Alert Telescope (BAT) catalog of gamma-ray bursts (GRBs), which contains 476 bursts detected by the BAT between 2004 December 19 and 2009 December 21. This catalog presents burst trigger time, location, 90% error radius, duration, fluence, peak flux, time-averaged spectral parameters and time-resolved spectral parameters measured by the BAT. The BAT T-90 duration peaks at 70 s. We confirm that the spectra of the BAT short-duration GRBs are generally harder than those of the long-duration GRBs. The observed durations of the BAT high redshift GRBs are not systematically longer than those of the moderate redshift GRBs. Furthermore, the observed spectra of the BAT high redshift GRBs are similar to or harder than the moderate redshift GRBs.
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页码：20 / +
页数：2
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