B. E. Stern, Ya. Tikhomirova, D. Kompaneets, M. Stepanov,
A. Berezhnoy, & R. Svensson
Non-Triggered BATSE Gamma-Ray Bursts: An Extended and
Revised log N - log P Distribution
Using new advanced techniques,
we made an off-line search for non-triggered
gamma-ray bursts (GRBs) in the
BATSE daily records (at 1024 ms time resolution) covering about 7 years of
observations. We found 1353 non-triggered and 1581 triggered GRBs
and extended
the log N - log P distribution down to peak fluxes of P ~ 0.1 ph
cm^-2 s^-1. Previous indications of a turnover of the log N - log P
distribution at small
P is not confirmed. The distribution cannot be fitted with a standard
candle model with a nonevolving GRB source population.
Back to
Gamma-Ray Burst Workshop Proceedings