Determining the Gamma-Ray Burst Rate as a Function of Redshift
Astrophysics
2009-11-07 v1
Abstract
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_{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_{GRB}(z) being proportional to the SFR.
Keywords
Cite
@article{arxiv.astro-ph/0107549,
title = {Determining the Gamma-Ray Burst Rate as a Function of Redshift},
author = {Nevin Weinberg and Carlo Graziani and Donald Q. Lamb and Daniel E. Reichart},
journal= {arXiv preprint arXiv:astro-ph/0107549},
year = {2009}
}
Comments
To appear in Procs. of Gamma-Ray Bursts in the Afterglow Era: 2nd Workshop, 3 pages, 3 figures, LaTeX