Stability window and mass-radius relation for magnetized strange quark stars

TL;DR

This paper investigates the stability and structural properties of magnetized strange quark stars using the MIT bag model, revealing enhanced stability and wider stability windows due to magnetic fields, and deriving their mass-radius relations.

Contribution

It introduces a detailed analysis of magnetized strange quark matter stability and mass-radius relations within the MIT bag model, highlighting the effects of magnetic fields.

Findings

Magnetic fields lower the energy per baryon, increasing stability.

Magnetized strange quark matter has a wider stability window than non-magnetized.

Mass-radius relations for magnetized strange quark stars are derived.

Abstract

The stability of magnetized strange quark matter (MSQM) is investigated within the phenomenological MIT bag model, taking into account the variation of the relevant input parameters, namely, the strange quark mass, baryon density, magnetic field and bag parameter. We obtain that the energy per baryon decreases as the magnetic field increases, and its minimum value at vanishing pressure is lower than the value found for SQM. This implies that MSQM is more stable than non-magnetized SQM. Furthermore, the stability window of MSQM is found to be wider than the corresponding one of SQM. The mass-radius relation for magnetized strange quark stars is also derived in this framework.