Radiation Processes in GRBs. Prompt Emission
Astrophysics
2009-11-10 v1
Abstract
A substantial fraction of prompt GRB spectra have soft spectral indexes exceeding the maximum allowed by the synchrotron model alpha_{max}=-2/3. Some spectra also exhibit very sharp break at E_p, inconsistent with the smooth synchrotron spectra. These facts pose a serious problem for the ``optically thin synchrotron'' interpretation of the prompt emission. We review various models suggested in order to resolve this puzzle.
Keywords
Cite
@article{arxiv.astro-ph/0410490,
title = {Radiation Processes in GRBs. Prompt Emission},
author = {Mikhail V. Medvedev},
journal= {arXiv preprint arXiv:astro-ph/0410490},
year = {2009}
}
Comments
6 pages, 5 figures. Review talk at GRB-03 conference (Santa Fe)