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Standard cooling of rapidly rotating isolated neutron stars in 2D

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arxiv 2206.04539 v2 pith:BTQOZ2QT submitted 2022-06-09 astro-ph.HE

Standard cooling of rapidly rotating isolated neutron stars in 2D

classification astro-ph.HE
keywords crustneutronstarsevolutioncodecoolingheatisolated
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study the thermal evolution of axisymmetric rotating neutron stars in full general relativity. To this aim we develop "NSCool 2D Rot", a major upgrade of the 1D neutron stars thermal evolution code "NSCool" by D. Page. As a first application of our new code we address the standard cooling of isolated neutron stars with rotation frequencies up to the mass shedding limit. We investigate the effects of the equation of state (EOS) by considering different combinations of core and crust EOSs. The results indicate complex time-dependent evolution of temperature distribution throughout the whole volume of the star and, in particular, in the crust. We show that most of that complexity can be attributed to the formation of a "heat blob" in the crust and to the latitude dependence of the heat diffusion timescale through the crust.

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  1. The initial data of effective field theories of relativistic viscous fluids and gravity

    gr-qc 2026-02 conditional novelty 5.0

    Initial data for the unphysical modes in well-posed EFTs should be fixed by order reduction, which suppresses fast modes without altering the equations of motion.