Search for Non-Triggered Gamma Ray Bursts in the BATSE Continuous Records: Preliminary Results

Details Search for Non-Triggered Gamma Ray Bursts in the BATSE Continuous Records: Preliminary Results Search for Non-Triggered Gamma Ray Bursts in the BATSE Continuous Records: Preliminary Results

1999-03-05

arxiv.org/abs/astro-ph/9903094v1

Astronomy and Astrophysics

Astrophysics

4 pages, LaTeX, to appear in Proceedings "Gamma Ray Bursts in the Afterglow Era", Rome, November 1998, A&AS, 1999

Scientific paper

10.1086/312873

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 $\sim$ 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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