21–23 Sept 2022
Universidad de Alcalá
Europe/Madrid timezone

NSCool 2D Rot: cooling of rapidly rotating neutron stars in 2D

22 Sept 2022, 15:30
30m
Universidad de Alcalá

Universidad de Alcalá

Colegio de San Ildefonso, Plaza de San Diego, s/n, 28801 Alcalá de Henares, Madrid.

Speaker

Dr Mikhail Beznogov (National Institute for Physics and Nuclear Engineering (IFIN-HH))

Description

We present one of the first results obtained with NSCool 2D Rot, a major upgrade of 1D neutron stars thermal evolution code NSCool by D. Page. Our new code allows to model thermal evolution of axisymmetric rotating neutron stars with arbitrary rotation frequencies up to the mass shedding limit in full general relativity. As an application, we address the question of cooling of rapidly rotating isolated neutron stars. We study the impact of equation of state (EOS) on the cooling by considering different EOSs of the core and crust. Simulation results show complex time-dependent dynamics of temperature distribution in the crust of the star. Nevertheless, we demonstrate that most of that complexity can be explained by formation of a ``heat blob'' in the crust and by timescales of heat diffusion through the crust.

Authors

Dr Mikhail Beznogov (National Institute for Physics and Nuclear Engineering (IFIN-HH)) Dr Jerome Novak (Laboratoire Univers et Theories, Observatoire de Paris, Universite PSL, CNRS, Universite de Paris-Cite) Prof. Dany Page (Instituto de Astronomia, Universidad Nacional Autonoma de Mexico) Adriana R. Raduta (National Institute for Physics and Nuclear Engineering (IFIN-HH))

Presentation materials