Photospheric Emission of Gamma-Ray Bursts
High Energy Astrophysical Phenomena
2017-04-05 v1
Abstract
We review the physics of GRB production by relativistic jets that start highly opaque near the central source and then expand to transparency. We discuss dissipative and radiative processes in the jet and how radiative transfer shapes the observed nonthermal spectrum released at the photosphere. A comparison of recent detailed models with observations gives estimates for important parameters of GRB jets, such as the Lorentz factor and magnetization. We also discuss predictions for GRB polarization and neutrino emission.
Keywords
Cite
@article{arxiv.1701.04523,
title = {Photospheric Emission of Gamma-Ray Bursts},
author = {A. M. Beloborodov and P. Mészáros},
journal= {arXiv preprint arXiv:1701.04523},
year = {2017}
}
Comments
29 pages, 10 figures, accepted to Space Science Reviews, chapter in ISSI book "Jets and Winds in Pulsar Wind Nebulae and Gamma-ray Bursts"