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Gamma-ray burst spectral evolution in the internal shock model: Comparison with the observations

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Abstract

Using a time-dependent numerical model in which the prompt gamma-ray burst (GRB) emission is calculated in the framework of the internal shock model on a broad energy range (from soft X-ray to GeV energies), we compute GRB lightcurves and time-evolving spectra. We show how the spectral evolution in this model is determined by the evolution of the physical conditions in the shocked regions and by the dominant radiative process for the effective microphysics parameters. The predictions of a model are confronted by the observations in the standard sub-MeV energy range, as well as with high energy bands observed by Fermi.

Original languageEnglish
Title of host publicationGamma Ray Bursts 2010, GRB 2010
Pages59-62
Number of pages4
DOIs
Publication statusPublished - 12 Sept 2011
Externally publishedYes
EventGamma Ray Bursts 2010, GRB 2010 - Annapolis, MD, United States
Duration: 1 Nov 20104 Nov 2010

Publication series

NameAIP Conference Proceedings
Volume1358
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceGamma Ray Bursts 2010, GRB 2010
Country/TerritoryUnited States
CityAnnapolis, MD
Period1/11/104/11/10

Keywords

  • γ-ray bursts

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