Determining the Gamma-Ray Burst Rate as a Function of Redshift

Details Determining the Gamma-Ray Burst Rate as a Function of Redshift Determining the Gamma-Ray Burst Rate as a Function of Redshift

2002-10-18

arxiv.org/abs/astro-ph/0210435v1

AIP Conf.Proc. 662 (2003) 460-462

Astronomy and Astrophysics

Astrophysics

3 pages, 3 figures, to appear in AIP proc. "Gamma-Ray Burst and Afterglow Astronomy 2001" Woods Hole, Massachusetts

Scientific paper

10.1063/1.1579402

We exploit the 14 gamma-ray bursts (GRBs) with known redshifts $z$ and the 7 GRBs for which there are constraints on $z$ to determine the GRB rate $R_{\rm GRB}(z)$, using a method based on Bayesian inference. We find that, despite the qualitative differences between the observed GRB rate and estimates of the SFR in the universe, current data are consistent with $R_{\rm GRB}(z)$ being proportional to the SFR.

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