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GRB emission in Neutron Star transitions

Published online by Cambridge University Press:  22 July 2013

M.A. Pérez-García ,
F. Daigne  and
J. Silk
M.A. Pérez-García
Affiliation:
Departament of Fundamental Physics and IUFFyM, University of Salamanca, Plaza de la Merced s/n 37008 Salamanca, Spain
F. Daigne
Affiliation:
UPMC-CNRS, UMR 7095, Institut d’Astrophysique de Paris, 75014 Paris, France
J. Silk
Affiliation:
Oxford Physics, University of Oxford, Keble Road OX1 3RH, Oxford, UK
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Abstract

In this contribution we briefly introduce a mechanism for short gamma ray burst emissiondifferent from the usually assumed compact objects binary merger progenitor model. It isbased on the energy release in the central regions of neutron stars. This energy injectionmay be due to internal self-annihilation of dark matter gravitationally accreted from thegalactic halo. We explain how this effect may trigger its full or partial conversion intoa quark star and, in such a case, induce a gamma ray burst with isotropic equivalentenergies in agreement with those measured experimentally. Additionally, we show how theejection of the outer crust in such events may be accelerated enough to produce Lorentzfactors over those required for gamma ray emission.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 61: Gamma-ray Bursts: 15 Years of GRB Afterglows – Progenitors,Environments and Host Galaxies from the Nearby to the Early Universe , 2013 , pp. 331 - 335
Copyright
© EAS, EDP Sciences 2013

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