Density dependent magnetic field and the equation of state of hyperonic matter

TL;DR

This paper investigates how strong, density-dependent magnetic fields influence hyperonic matter's properties, including its equation of state and mass-radius relations, incorporating anomalous magnetic moments within a nonlinear Walecka model framework.

Contribution

It introduces the effects of variable magnetic fields and anomalous magnetic moments on hyperonic matter, extending previous models to include these factors in the nonlinear Walecka approach.

Findings

Magnetic fields significantly affect the equation of state.

Anomalous magnetic moments alter the matter's properties.

Results differ notably from models without magnetic corrections.

Abstract

We are interested on the effects, caused by strong variable density dependent magnetic fields, on hyperonic matter, its symmetry energy, equations of state and mass-radius relations. The inclusion of the anomalous magnetic moment of the particles involved in a stellar system is performed, and some results are compared with the cases that do not take this correction under consideration. The Lagrangian density used follows the nonlinear Walecka model plus the leptons subjected to an external magnetic field.