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GRB spectral parameter modeling

Published online by Cambridge University Press:  08 June 2011

Gregory D. Fleishman  and
Fedor A. Urtiev
Gregory D. Fleishman
Affiliation:
New Jersey Institute of Technology, Newark, NJ 07102, USA Ioffe Institute, St. Petersburg 194021, Russia email: [email protected]
Fedor A. Urtiev
Affiliation:
State Polytechnical University, St.Petersburg, 195251, Russia email: [email protected]
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Abstract

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Fireball model of the gamma-ray bursts (GRBs) predicts generation of numerous internal shocks, which efficiently accelerate charged particles and generate relatively small-scale stochastic magnetic and electric fields. The accelerated particles diffuse in space due to interaction with the random waves and so emit so called Diffusive Synchrotron Radiation (DSR) in contrast to standard synchrotron radiation they would produce in a large-scale regular magnetic fields. In this contribution we present key results of detailed modeling of the GRB spectral parameters, which demonstrate that the non-perturbative DSR emission mechanism in a strong random magnetic field is consistent with observed distributions of the Band parameters and also with cross-correlations between them.

Keywords

acceleration of particlesshock wavesturbulencegalaxies: jetsradiation mechanisms: non-thermalmagnetic fields
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S274: Advances in Plasma Astrophysics , September 2010 , pp. 243 - 245
Copyright
Copyright © International Astronomical Union 2011

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