A New Discriminator for Gamma-Ray Burst Classification: The Epeak-Fluence Energy Ratio
High Energy Astrophysical Phenomena
2010-09-14 v1
Abstract
Using the derived gamma-ray burst E_peak and fluences from the complete BATSE 5B Spectral Catalog, we study the ensemble characteristics of the E_peak-fluence relation for GRBs. This relation appears to be a physically meaningful and insightful fundamental discriminator between long and short bursts. We discuss the results of the lower limit test of the E_peak-E_iso relations in the E_peak-fluence plane for BATSE bursts with no observed redshift. Our results confirm the presence of two GRB classes as well as heavily suggesting two different GRB progenitor types.
Keywords
Cite
@article{arxiv.1009.2105,
title = {A New Discriminator for Gamma-Ray Burst Classification: The Epeak-Fluence Energy Ratio},
author = {A. Goldstein and R. D. Preece and M. S. Briggs},
journal= {arXiv preprint arXiv:1009.2105},
year = {2010}
}
Comments
8 pages, 3 figures, accepted for publication in ApJ