GRANAT WATCH CATALOG OF COSMIC GAMMA-RAY BURSTS - DECEMBER 1989 TO SEPTEMBER 1994/

Citation
Sy. Sazonov et al., GRANAT WATCH CATALOG OF COSMIC GAMMA-RAY BURSTS - DECEMBER 1989 TO SEPTEMBER 1994/, Astronomy & Astrophysics. Supplement series, 129(1), 1998, pp. 1-8
Citations number
18
Categorie Soggetti
Astronomy & Astrophysics
ISSN journal
03650138
Volume
129
Issue
1
Year of publication
1998
Pages
1 - 8
Database
ISI
SICI code
0365-0138(1998)129:1<1:GWCOCG>2.0.ZU;2-N
Abstract
We present the catalogue of gamma-ray bursts (GRB) observed with the W ATCH all-sky monitor on board the GRANAT satellite during the period D ecember 1989 to September 1994. The cosmic origin of 95 bursts compris ing the catalogue is confirmed either bg their localization with WATCH or by their detection with other GRB experiments. For each burst its time history and information on its intensity in the two energy ranges 8-20 keV and 30-60 keV are presented, Most events show hardening of t he energy spectrum near the burst peak. In part of the bursts an X-ray precursor or a tail is seen at 8-20 keV. We have determined the celes tial positions of the sources of 47 bursts. Their localization regions (at 3 sigma confidence level) are equivalent in area to circles with radii ranging from 0.2 to 1.6 deg. The burst sources appear isotropica lly distributed on the sky on large angular scales.