Fully self-consistent thermal evolution studies of rotating neutron stars

26 Sep 2017, 16:00
25m
Blokhintsev Hall (4rd floor, BLTP) (DUBNA)

Blokhintsev Hall (4rd floor, BLTP)

DUBNA

DUBNA RUSSIA

Speaker

Prof. Rodrigo Negreiros (Universidade Federal Fluminense)

Description

In this work we study the thermal evolution of rotating, axis-symmetric neutron stars, which are subjected to atructural and compositional changes during spin-down. Our aim is to go beyond standard thermal evolution calculations where neutron stars are considered spherically-symmetric and with a static, "frozen-in" composition. Building on previous work, we carry out fully self-consistent thermal evolution calculations where the neutron star has an axis-symmetric, time-dependent structure. Such an approach allows us to consider, during the thermal evolution, changes of the star's geometry as well as its microscopic particle population. As a proof-of-concept, we study the thermal evolution of a neutron star subjected to magnetic braking spin-down. We show that the spin-evolution, combined with the accompanying structural and compositional changes lead to a substantially distinct thermal evolution scenario.

Presentation Materials