Thermal evolution of neutron stars with internal heating in the superfluid core

Abstract

view Abstract Citations (11) References (54) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Thermal Evolution of Neutron Stars with Internal Heating in the Superfluid Core Sedrakyan, Armen D. ; Sedrakyan, David M. Abstract Thermal evolution of neutron stars, including the effect of internal heating in the superfluid layers of the quantum liquid region, is considered. The dissipative processes examined are the dissipation due to the decay of electronic current set up by the motion of generated proton vortex lines and the dissipation due to the proton vortex self-energy release at the phase separation boundary between the crust and the core of the star. This energy dissipation leads to an essential enhancement of surface temperatures and photon luminosities of neutron stars at the photon cooling era of their thermal evolution. Both the standard and nonstandard cooling models are consistent with the upper limits on the neutron star surface temperatures placed by the soft X-ray observations, with the exception of the Vela pulsar. The observed surface temperature of this pulsar suggests nonstandard cooling, with a high internal heating rate in the superfluid core of the star. Publication: The Astrophysical Journal Pub Date: August 1993 DOI: 10.1086/173034 Bibcode: 1993ApJ...413..658S Keywords: Neutron Stars; Stellar Cores; Stellar Evolution; Stellar Temperature; Cooling; Stellar Luminosity; Superfluidity; Surface Temperature; Vortices; Astrophysics; DENSE MATTER; STARS: INTERIORS; STARS: NEUTRON; X-RAYS: STARS full text sources ADS | data products SIMBAD (14)