The Complete Spectral Catalog of Bright BATSE Gamma‐Ray Bursts

TLDR

The study systematically analyzes the spectra of 350 bright BATSE gamma‑ray bursts with high spectral and temporal resolution. The authors selected 350 bright bursts (including 17 short ones) from the full BATSE catalog, fitted four photon models to each of 350 time‑integrated and 8459 time‑resolved spectra, and statistically chose the best‑representing parameters. The catalog, the most comprehensive to date, delivers exceptional statistical constraints on particle acceleration and emission mechanisms in GRB prompt emission.

Abstract

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.