General Relativistic effect on the energy deposition rate for neutrino pair annihilation above the equatorial plane along the symmetry axis near a rotating neutron star

Abstract

The estimate of the energy deposition rate (EDR) for neutrino pair annihilation has been carried out. The EDR for the neutrinos coming from the equatorial plane of a rotating neutron star is calculated along the rotation axis using the Cook-Shapiro-Teukolsky (CST) metric. The neutrino trajectories and hence the neutrino emitted from the disk is affected by the redshift due to disk rotation and gravitation. The EDR is very sensitive to the value of the temperature and its variation along the disk. The rotation of the star has a negative effect on the EDR; it decreases with increase in rotational velocity.

17 pages, 5 figures

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• Rotating Twin Stars and Signature of Quark-Hadron Phase Transition
• General Relativistic effects on the conversion of nuclear to two-flavour quark matter in compact stars
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• Spin-down induced quark-hadron phase transition in cold isolated neutron stars
• Multimessenger signal from phase transition of neutron star to quark star