GRB Redshift Evolution Within the Unified Jet Model
Astrophysics
2009-11-10 v1
Abstract
HETE-2 has provided new evidence that gamma-ray bursts may evolve with redshift. We investigate the consequences of this possibility for the unified jet model of XRFs and GRBs. We find that burst evolution with redshift can be naturally explained within the unified jet model, and the resulting model provides excellent agreement with existing HETE-2 and BeppoSAX data sets. In addition, this evolution model produces reasonable fits to the BATSE peak photon number flux distribution -- something that cannot be easily done without redshift evolution.
Keywords
Cite
@article{arxiv.astro-ph/0312496,
title = {GRB Redshift Evolution Within the Unified Jet Model},
author = {T. Q. Donaghy and D. Q. Lamb and C. Graziani},
journal= {arXiv preprint arXiv:astro-ph/0312496},
year = {2009}
}
Comments
5 pages, 4 figures, to appear in proc. 2003 GRB Conference, Santa Fe, NM