A Relativistic Quantum Approach to Neutrino and Antineutrino Emissions via the Direct Urca Process in Strongly Magnetized Neutron-Star Matter
arXiv:2103.01703 · doi:10.1016/j.physletb.2021.136813
Abstract
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.
arXiv comment15 pages, 5 figures
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- Effects of Landau quantization on neutrino emission and absorption
- Novel features of asymmetric nuclear matter from terrestrial experiments and astrophysical observations of neutron stars
- Neutrino opacities in magnetic fields for binary neutron star merger simulations
- Thermal and Magnetic effects on Bulk Viscosity in Binary Neutron Star Mergers
- Numerical simulation of electron magnetohydrodynamics with Landau-quantized electrons in magnetar crusts