Duration and hardness ratio of Swift GRBs
High Energy Astrophysical Phenomena
2010-06-30 v1
Abstract
We review the T_90 duration and hardness ratio of Swift Gamma Ray Bursts (GRBs). We focus on GRBs with known redshift and review their gamma properties in the GRBs rest frames. We find that GRBs number vs. T_90/(1+z) distribution shows a separation between two classes at 0.65 s. Furthermore, we find that the difference in hardness ratio between short and long bursts is not very pronounced and depends on energy channels used for comparison.
Cite
@article{arxiv.1006.5550,
title = {Duration and hardness ratio of Swift GRBs},
author = {Andreja Gomboc and Drejc Kopac},
journal= {arXiv preprint arXiv:1006.5550},
year = {2010}
}
Comments
4 pages, 3 figures, proceedings of the The Shocking Universe meeting, Venice, September 2009