A Search for Nontriggered Gamma-Ray Bursts in the BATSE Continuous Records: First Results | Zendy

B. E. Stern | Zendy; Ya. Yu. Tikhomirova | Zendy; M. A. Stepanov | Zendy; D. Kompaneets | Zendy; A. A. Berezhnoy | Zendy; Roger Svensson | Zendy

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A Search for Nontriggered Gamma-Ray Bursts in the BATSE Continuous Records: First Results

Author(s) -

B. E. Stern,

Ya. Yu. Tikhomirova,

M. A. Stepanov,

D. Kompaneets,

A. A. Berezhnoy,

Roger Svensson

Publication year - 2000

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/312873

Subject(s) - gamma ray burst , physics , astrophysics , luminosity , population , cosmic distance ladder , galaxy , medicine , environmental health , redshift

We present preliminary results of an off-line search for non-triggeredgamma-ray bursts (GRBs) in the BATSE daily records for about 5.7 years ofobservations. We found more GRB-like events than the yield of the similarsearch of Kommers et al. (1998) and extended the Log N - log P distributiondown to $\sim$ 0.1 ph cm$^{-2}$ s$^{-1}$. The indication of a turnover of thelog N - log P at a small P is not confirmed: the distribution is straight at1.5 decades with the power law index -.6 and cannot be fitted with a standardcandle cosmological model.Comment: 4 pages, LaTeX, to appear in Proceedings "Gamma Ray Bursts in the Afterglow Era", Rome, November 1998, A&AS, 199

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