Kaon Condensation in a Neutron Star under Strong Magnetic Fields by Using the Modified Quark-meson Coupling Model

TL;DR

This paper investigates how strong magnetic fields influence antikaon condensation and the structure of neutron stars using the modified quark-meson coupling model, highlighting effects on the equation of state and maximum star mass.

Contribution

It introduces a study of neutron star matter with magnetic fields, hyperons, and kaon condensation using the MQMC model, focusing on magnetic effects on star structure.

Findings

Magnetic fields stiffen the equation of state.

Strong magnetic fields increase the maximum neutron star mass.

Magnetic effects depend on kaon optical potentials.

Abstract

We have considered the antikaon condensation in a neutron star in the presence of strong magnetic fields by using the modified quark-meson coupling (MQMC) model. The structure of the neutron star is investigated with various magnetic fields and different kaon optical potentials, and the effects of the magnetic fields for kaon condensation is discussed. When employing strong magnetic fields inside a neutron star with hyperons and kaon condensation, the magnetic fields can cause the equation of state to be stiff; thus, a large maximum mass of the neutron star can be obtained.