Time Resolved GRB Spectroscopy
Astrophysics
2009-10-31 v1
Abstract
We present the main results of a study of time-resolved spectra of 43 intense GRBs detected by BATSE. We considered the 4-parameter Band model and the Optically Thin Synchrotron Shock model (OTSSM). We find that the large majority of time-resolved spectra of GRBs are in remarkable agreement with the OTSSM. However, about 15 % of initial GRB pulses show an apparent low-energy photon suppression. This phenomenon indicates that complex radiative conditions modifying optically thin emission may occur during the initial phases of some GRBs.
Keywords
Cite
@article{arxiv.astro-ph/0002207,
title = {Time Resolved GRB Spectroscopy},
author = {M. Tavani and D. Band and G. Ghirlanda},
journal= {arXiv preprint arXiv:astro-ph/0002207},
year = {2009}
}
Comments
5 pages, 3 figures, Paper presented at the 5th Huntsville Symposium, Huntsville (Alabama) Oct. 1999