The detectability of gamma-ray bursts and their afterglows at very high redshifts

Lamb, Donald Q.; Reichart, Daniel E.
June 2000
AIP Conference Proceedings;2000, Vol. 522 Issue 1, p249
Academic Journal
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). © 2000 American Institute of Physics.


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