Origin of the Strong Toroidal Magnetic Field in Magnetars

TL;DR

This paper proposes a model explaining the origin of strong toroidal magnetic fields in magnetars, attributing it to chiral asymmetry and spin currents generated by electron capture influenced by weak interactions.

Contribution

It introduces a novel chiral asymmetry model using Dirac Hartree Fock method to explain magnetar magnetic fields.

Findings

Toroidal magnetic field linked to spin currents from chiral asymmetry.

Electron capture by weak interactions induces parity violation.

Model aligns with observed magnetar magnetic field strengths.

Abstract

A simple model of chiral asymmetry is proposed to interpret the origin of the strong toroidal magnetic field. The electrons relevant to dynamics forming the the field are in a quantume degenerate state with ultra-relativistic Fermi energy. The system is described by Dirac Hartree Fock method using scaled h-bar method. Neutron stars are rotating and have large angular momentum which is formed by cranking model and breaks time reversal. Dirac current is decomposed into convection and spin currents due to Clifford number. The strong toroidal magnetic field is formed by the spin like current resulted by the chiral asymmetry brought about electron capture caused by the parity-violating weak interaction.