Twelve hundred non-triggered gamma ray bursts

Authors
Stern, B Tikhomirova, Y Stepanov, M Kompaneets, D Berezhnoy, A Svensson, R
Citation
B. Stern et al., Twelve hundred non-triggered gamma ray bursts, ASTR AST SS, 138(3), 1999, pp. 413-414
Citations number
8
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
ISSN journal
03650138 → ACNP
Volume
138
Issue
3
Year of publication
1999
Pages
413 - 414
Database
ISI
SICI code
0365-0138(199909)138:3<413:THNGRB>2.0.ZU;2-8
Abstract
We present preliminary results of an off-line search for non-triggered gamm a-ray bursts (GRBs) in the BATSE daily records for about 5.7 years of obser vations. We found more GRB-like events than the yield of the similar search of Kommers et al. (1998) and extended the log N - log P distribution down to - 0.1 ph cm(-2) s(-1). The indication of a turnover of the log N - log P at a small P is not confirmed: the distribution is straight at 1.5 decades with the power law index -.6 and cannot be fitted with a standard candle c osmological model.