Gravitational collapse of a magnetized fermion gas with finite temperature

Abstract

We examine the dynamics of a self--gravitating magnetized electron gas at finite temperature near the collapsing singularity of a Bianchi-I spacetime. Considering a general and appropriate and physically motivated initial conditions, we transform Einstein--Maxwell field equations into a complete and self--consistent dynamical system amenable for numerical work. The resulting numerical solutions reveal the gas collapsing into both, isotropic ("point-like") and anisotropic ("cigar-like") singularities, depending on the initial intensity of the magnetic field. We provide a thorough study of the near collapse behavior and interplay of all relevant state and kinematic variables: temperature, expansion scalar, shear scalar, magnetic field, magnetization and energy density. A significant qualitative difference in the behavior of the gas emerges in the temperature range $Tsim10^{4}K$ and $T\sim 10^{7}K$.

9 pages, 7 figures. arXiv admin note: substantial text overlap with arXiv:1211.5980

References in corpus (5)

• Equation of State of a Dense and Magnetized Fermion System
• Anisotropic Pressures in Very Dense Magnetized Matter
• Magnetized color flavor locked state and compact stars
• Local dynamics and gravitational collapse of a self-gravitating magnetized Fermi gas
• Dynamics of a self--gravitating magnetized source

Cited by in corpus (1)

• A non-perturbative study of the evolution of cosmic magnetised sources