The Thermal Response of a Pulsar Glitch : The Non-spherical Symmetric Case

Details The Thermal Response of a Pulsar Glitch : The Non-spherical Symmetric Case The Thermal Response of a Pulsar Glitch : The Non-spherical Symmetric Case

1999-03-08

arxiv.org/abs/gr-qc/9903033v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Published in Ap. J. Lett

Scientific paper

We study the thermal evolution of a pulsar after a glitch in which the energy is released from a relative compact region. A set of relativistic thermal transport and energy balance equations is used to study the thermal evolution, without making the assumption of spherical symmetry. We use an exact cooling model to solve this set of differential equtions. Our results differ significantly from those obtained under the assumption of spherical symmetry. Even for young pulsars with a hot core like the Vela pulsar, we find that a detectable hot spot can be observed after a glitch. The results suggest that the intensity variation and the relative phases of hard X-ray emissions in different epoches can provide important information on the equation of state.

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