Dynamics of Rotating, Magnetized Neutron Stars

TL;DR

This paper investigates the complex dynamics and stability of rotating, magnetized neutron stars using advanced 3D general relativistic magnetohydrodynamics simulations, revealing potential pathways to black hole formation.

Contribution

It introduces a fully relativistic 3D simulation framework for studying magnetized, rotating neutron stars with realistic initial data, advancing understanding of their stability and evolution.

Findings

Some rotating, magnetized neutron stars may be minimally unstable.

Potential threshold conditions for black hole formation identified.

Simulations demonstrate complex dynamical behavior of magnetized neutron stars.

Abstract

Using a fully general relativistic implementation of ideal magnetohydrodynamics with no assumed symmetries in three spatial dimensions, the dynamics of magnetized, rigidly rotating neutron stars are studied. Beginning with fully consistent initial data constructed with Magstar, part of the Lorene project, we study the dynamics and stability of rotating, magnetized polytropic stars as models of neutron stars. Evolutions suggest that some of these rotating, magnetized stars may be minimally unstable occurring at the threshold of black hole formation.