Superfluid phases of triplet pairing and rapid cooling of the neutron star in Cassiopeia A

In a simple model it is demonstrated that the neutron star surface temperature evolution is sensitive to the phase state of the triplet superfluid condensate. A multicomponent triplet pairing of superfluid neutrons in the core of a neutron star with participation of several magnetic quantum numbers...

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Published in:arXiv.org 2014-12
Main Author: Leinson, Lev B
Format: Article
Language:English
Subjects:
Cassiopeia A
Computer simulation
Condensates
Cooling
Exhumation
Fluids
Neutrinos
Neutron stars
Neutrons
Phase transitions
Quantum numbers
Stellar evolution
Superfluidity
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description In a simple model it is demonstrated that the neutron star surface temperature evolution is sensitive to the phase state of the triplet superfluid condensate. A multicomponent triplet pairing of superfluid neutrons in the core of a neutron star with participation of several magnetic quantum numbers leads to neutrino energy losses exceeding the losses from the unicomponent pairing. A phase transition of the neutron condensate into the multicomponent state triggers more rapid cooling of superfluid core in neutron stars. This makes it possible to simulate an anomalously rapid cooling of neutron stars within the minimal cooling paradigm without employing any exotic scenarios suggested earlier for rapid cooling of isolated neutron star in Cassiopeia A.
doi_str_mv 10.48550/arxiv.1411.6833
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subjects Cassiopeia A
Computer simulation
Condensates
Cooling
Exhumation
Fluids
Neutrinos
Neutron stars
Neutrons
Phase transitions
Quantum numbers
Stellar evolution
Superfluidity
title Superfluid phases of triplet pairing and rapid cooling of the neutron star in Cassiopeia A
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