15–19 Jun 2015
Hotel Mercure Buda, Budapest
Europe/Budapest timezone
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Modified Urca processes in the BHF framework

15 Jun 2015, 15:40
25m
Conference Room A (Hotel Mercure Buda)

Conference Room A

Hotel Mercure Buda

Speaker

Dr Peter Shternin (Ioffe Institute)

Description

We calculate the rate of neutrino emission due to modified Urca processes in a nucleon core of a neutron star taking into account in-medium effects on the nuclear interaction. The nuclear interaction is described via the in-medium G-matrix calculated in the Brueckner-Hartree-Fock framework with the continuous choice of the single particle potential. The full Argonne v18 potential with addition of the Urbana IX effective three-body forces is used. We find that the in-medium effects in this model considerably modify the reaction rates, and the modification becomes stronger for the densities closer to the direct Urca threshold. The implications of the results for the neutron star cooling are discussed.

Primary author

Dr Peter Shternin (Ioffe Institute)

Co-author

Dr Marcello Baldo (INFN Sez. di Catania)

Presentation materials