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      Constraints on the Spatial Distribution and Luminosity function of GRBs

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          Abstract

          The distance scale to gamma ray bursts has been a subject of scientific debate for almost thirty years. Up to the discovery of afterglows only indirect methods could be used to constrain the distance scale to this objects. I review some of these results, and show the current limits on the spatial distribution and luminosity function of GRBs. The results obtained with different methods indicate that gamma-ray bursts lie at the typical redshifts \(z_{ave}\) between 1 and 2, however there can exist a long tail of the distribution stretching to higher redshifts. The width of the GRB luminosity function (the ratio of the intrinsic brightness of the brightest to the dimmest observed burst) estimated from Beppo SAX bursts with redshifts is almost \(10^3\).

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          Author and article information

          Journal
          23 November 1999
          Article
          astro-ph/9911437
          39f1701b-9368-41ac-bf75-decba5cb0d5f
          History
          Custom metadata
          ASP Conference Series, vol 190, p. 219
          16 pages, uses paspconf.sty, Proceedings of the February 1999 Workshop "Gamma Ray Bursts: The First Three Minutes" in Graftavallen, Sweden
          astro-ph

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