Fully self-consistent thermal evolution studies of rotating neutron stars

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

Blokhintsev Hall (4rd floor, BLTP)




Prof. Rodrigo Negreiros (Universidade Federal Fluminense)


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.

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