Role of a magnetic field in the context of inhomogeneous gravitational collapse

TL;DR

This paper investigates how magnetic fields influence inhomogeneous gravitational collapse, demonstrating that magnetic fields can potentially prevent the formation of singularities in cylindrically symmetric models.

Contribution

It explores the role of magnetic fields in inhomogeneous gravitational collapse using Raychaudhuri equation, a less-studied aspect in this context.

Findings

Magnetic fields can prevent collapse in inhomogeneous models

Magnetic effects oppose gravitational contraction

Potential to avoid singularity formation

Abstract

Magnetic fields have been found to have an inherent capability of acting against gravity. An important question posed in the literature is whether presence of a magnetic field can alter the dynamics of a gravitational collapse and prevent the final formation of a singularity. Inhomogeneous models of collapse have not been explored significantly in this context. In the present work we investigate the role of magnetic fields in the evolution of inhomogeneous cylindrically symmetric models. We use an approach based on the Raychaudhuri equation for such an analysis. We show that it is quite possible for the magnetic field to avert the gravitational collapse in these models.