Gamma-Ray Bursts via Pair Plasma Fireballs from Heated Neutron Stars
Abstract
In this paper we model the emission from a relativistically expanding electron-positron pair plasma fireball originating near the surface of a heated neutron star. This pair fireball is deposited via the annihilation of neutrino pairs emanating from the surface of the hot neutron star. The heating of neutron stars may occur in close neutron star binary systems near their last stable orbit. We model the relativistic expansion and subsequent emission of the plasma and find 1051 to 1052 ergs in gamma-rays are produced with spectral and temporal properties consistent with observed gamma-ray bursts.
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