Search for Non-Triggered Gamma Ray Bursts in the BATSE Continuous Records: Preliminary Results
B. Stern, Ya. Tikhomirova, M. Stepanov, D. Kompaneets, A. Berezhnoy, R. Svensson
Abstract
We present preliminary results of an off-line search for non-triggered gamma-ray bursts (GRBs) in the BATSE daily records for about 5.7 years of observations. 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 cosmological model.
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