@inproceedings{c5994cbd50384d9ba0798d019a698add,
title = "Photospheres in gamma-ray bursts: A critical overview",
abstract = "I review some key observables seen during gamma-ray bursts (GRB) prompt emission phase. These include: the narrow distribution of the peak energy at the sub-MeV range, the peak energy - luminosity relation and the clustering of the low energy spectral slope index around 〈α〉 ∼ −1. I confront the different theoretical suggestions with these observations, discussing: (1) optically thin emission models; (2) pure ”Planck”spectra; (3) broadened ”Planck” spectra, caused by (a) sub-photospheric heating, and (b) geometrical broadening. I discuss the success and failure of each of these models in explaining the observed spectra.",
keywords = "Gamma-rays: bursts, Radiation mecha-nism: thermal, Radiation mechanism: non-thermal",
author = "Asaf Pe{\textquoteright}Er",
note = "Publisher Copyright: {\textcopyright} 2015, World Scientific. All rights reserved.; 13th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Gravitation, and Relativistic Field Theories, MG13 2012 ; Conference date: 01-07-2015 Through 07-07-2015",
year = "2015",
doi = "https://doi.org/10.1142/9789814623995_0277",
language = "الإنجليزيّة",
isbn = "9789814612142",
series = "The 13th Marcel Grossmann Meeting: On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Proceedings of the MG13 Meeting on General Relativity, 2012",
publisher = "World Scientific",
pages = "1765--1767",
editor = "Jantzen, {Robert T.} and Kjell Rosquist and Remo Ruffini",
booktitle = "On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories",
address = "الولايات المتّحدة",
}