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A Relativistic Quantum Approach to Neutrino and Antineutrino Emissions via the Direct Urca Process in Strongly Magnetized Neutron-Star Matter

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arxiv 2103.01703 v6 pith:KQFWVZRP submitted 2021-03-02 nucl-th astro-ph.HE

A Relativistic Quantum Approach to Neutrino and Antineutrino Emissions via the Direct Urca Process in Strongly Magnetized Neutron-Star Matter

Tomoyuki Maruyama , A. Baha Balantekind , Myung-Ki Cheoung , Toshitaka Kajino , Motohiko Kusakabef , Grant J. Mathewsh This is my paper
classification nucl-th astro-ph.HE
keywords processdirecturcaantineutrinoneutrinoconvertsmagneticmatter
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We study 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 a proton-electron pair converts to a neutron-neutrino pair. We solve exact wave functions for protons and electrons in the states described with Landau levels. We find that the direct Urca process can satisfy the kinematic constraints even in density regions where this process could not normally occur in the absence of a magnetic field.

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Cited by 2 Pith papers

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  1. Thermal and Magnetic effects on Bulk Viscosity in Binary Neutron Star Mergers

    nucl-th 2025-10 unverdicted novelty 7.0

    Magnetic fields modify bulk viscous dissipation in post-merger neutron star matter by altering direct and modified Urca rates at finite temperature beyond the Fermi surface approximation.

  2. Spin effects in superfluidity, neutron matter and neutron stars

    astro-ph.HE 2026-04 unverdicted novelty 2.0

    A review of spin effects, superfluidity, and magnetic fields in neutron matter and their influence on neutron-star structure, superfluid phases, and rotational dynamics.