The Fourth BATSE Gamma‐Ray Burst Catalog (Revised)

TLDR

The fourth BATSE catalog includes bursts from periods with trigger energy ranges differing from the nominal 50–300 keV, a notable change from earlier catalogs. The authors provide tables listing burst occurrence times, locations, peak fluxes, fluences, and durations. The 4Br catalog, revised from the 1997 4B version, incorporates improved burst locations derived from reprocessing with additional data and presents the aforementioned tables. BATSE detected 1,637 cosmic gamma‑ray bursts between April 1991 and August 1996, forming the fourth catalog, and the results confirm earlier catalogs with greater statistical significance.

Abstract

The Burst and Transient Source Experiment (BATSE) on the Compton Gamma Ray Observatory (CGRO) has triggered on 1637 cosmic gamma-ray bursts between 1991 April 19 and 1996 August 29. These events constitute the Fourth BATSE burst catalog. The current version (4Br) has been revised from the version first circulated on CD-ROM in September 1997 (4B) to include improved locations for a subset of bursts that have been reprocssed using additional data. A significant difference from previous BATSE catalogs is the inclusion of bursts from periods when the trigger energy range differed from the nominal 50-300 keV. We present tables of the burst occurrence times, locations, peak fluxes, fluences, and durations. In general, results from previous BATSE catalogs are confirmed here with greater statistical significance.