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Gamma-Ray Bursts Polarization

Published online by Cambridge University Press:  23 June 2017

Diego Götz  and
Stefano Covino Open the ORCID record for Stefano Covino [Opens in a new window]
Diego Götz
Affiliation:
CEA Saclay - DRF/Irfu/Service d’Astrophysique, Orme des Merisiers, Bât. 709, F-91191 Gif-sur-Yvette, France email: diego.gotz@cea.fr
Stefano Covino
Affiliation:
INAF / Brera Astronomical Observatory, Via Bianchi 46, 23907, Merate (LC), Italy email: stefano.covino@brera.inaf.it
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Abstract

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We review the current observational and theoretical status of the polarization measurements of Gamma-ray Bursts at all wavelengths. Gamma-Ray Bursts are thought to be produced by an ultra-relativistic jet, possibly powered by a black hole. One of the most important open point is the composition of the jet: the energy may be carried out from the central source either as kinetic energy (of baryons and/or pairs), or in electromagnetic form (Poynting flux). The polarization properties are expected to help disentangling main energy carrier. The prompt emission and afterglow polarization are also a powerful diagnostic of the jet geometry.

Keywords

Polarizationgamma rays: burstsgamma rays: observationstechniques: photometric
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S324: New Frontiers in Black Hole Astrophysics , September 2016 , pp. 54 - 61
Copyright
Copyright © International Astronomical Union 2017 

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