http://arxiv.org/abs/2103.01703
We study the neutrino and antineutrino emission from the direct Urca process in neutron-star matter in the presence of strong magnetic fields. We calculate the neutrino emissivity of the direct Urca process, whereby a neutron converts to a proton, an electron and an antineutrino, or proton-electron pair converts to a neutron-electron pair. We solve exact wave functions for protons and electrons in the states described with Landau levels. We find that in the strong magnetic fields the direct Urca process can occur in density regions where this process could not normally occur in the absence of a magnetic field. This is because of the kinematical condition.
T. Maruyama, A. Balantekind, M. Cheoung, et. al.
Wed, 3 Mar 21
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