The Detectability of Gamma-Ray Bursts and Their Afterglows at Very High Redshifts

Details The Detectability of Gamma-Ray Bursts and Their Afterglows at Very High Redshifts The Detectability of Gamma-Ray Bursts and Their Afterglows at Very High Redshifts

2000-02-01

arxiv.org/abs/astro-ph/0002034v1

Astronomy and Astrophysics

Astrophysics

To appear in Proc. of the 10th Annual October Astrophysics Conference in Maryland: Cosmic Explosions, 4 pages, LaTeX

Scientific paper

10.1063/1.1291721

There is increasingly strong evidence that gamma-ray bursts (GRBs) are associated with star-forming galaxies, and occur near or in the star-forming regions of these galaxies. These associations provide indirect evidence that at least the long GRBs detected by BeppoSAX are a result of the collapse of massive stars. The recent evidence that the light curves and the spectra of the afterglows of GRB 970228 and GRB 980326 appear to contain a supernova component, in addition to a relativistic shock wave component, provide more direct clues that this is the case. Here we establish that GRBs and their afterglows are both detectable out to very high redshifts (z > 5).

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