Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-01-09
Astronomy and Astrophysics
Astrophysics
To appear in the proceedings of the meeting "Gamma Ray Bursts in the Swift Era"
Scientific paper
10.1086/505911
We present a systematic spectral analysis of 350 bright GRBs observed with BATSE, with high spectral and temporal resolution. Our sample was selected from the complete set of 2704 BATSE GRBs, and included 17 short GRBs. To obtain well-constrained spectral parameters, four different photon models were fitted and the spectral parameters that best represent each spectrum were statistically determined. A thorough analysis was performed on 350 time-integrated and 8459 time-resolved burst spectra. Using the results, we compared time-integrated and time-resolved spectral parameters, and also studied correlations among the parameters and their evolution within each burst. The resulting catalog is the most comprehensive study of spectral properties of GRB prompt emission to date, and provides constraints with exceptional statistics on particle acceleration and emission mechanisms in GRBs.
Band David L.
Briggs Michael Stephen
Kaneko Yuki
Meegan Charles A.
Paciesas William Simon
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