Effects of Magnetic Fields in Hot White Dwarfs

Abstract

In this work, we study the effects of temperature on magnetic white dwarfs. We model their interior as a nuclei lattice surrounded by a relativistic free Fermi gas of electrons, accounting for effects from temperature, Landau levels and anomalous magnetic moment. We find that, at low densities (corresponding to the outer regions of star), both temperature and magnetic field effects play an important role in the calculation of microscopic thermodynamical quantities. To study macroscopic stellar structures within a general-relativistic approach, we solve numerically the coupled Einstein's-Maxwell's equations for fixed entropy per particle configurations and discuss how temperature affects stellar magnetic field profiles, masses and radii.

References in corpus (29)

• Black Holes
• Magnetic White Dwarfs
• Effects of Strong Magnetic Fields on Neutron Star Structure
• The Sirius System and its Astrophysical Puzzles: Hubble Space Telescope and Ground-Based Astrometry
• Spectropolarimetric Survey of Hydrogen-rich White Dwarf Stars
• Magnetic White Dwarf Stars in the Sloan Digital Sky Survey
• Consistent neutron star models with magnetic field dependent equations of state
• White dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 14
• Bulk Properties of a Fermi Gas in a Magnetic Field
• Analysis of hydrogen-rich magnetic white dwarfs detected in the Sloan Digital Sky Survey
• The formation of high-field magnetic white dwarfs from common envelopes
• Strongly magnetized cold electron degenerate gas: Mass-radius relation of the magnetized white dwarf
• The influence of strong magnetic fields on proto-quark stars
• Merging Binary Stars and the magnetic white dwarfs
• Effects of strong magnetic fields and rotation on white dwarf structure
• A self-consistent study of magnetic field effects on hybrid stars
• Dynamical instability of white dwarfs and breaking of spherical symmetry under the presence of extreme magnetic fields
• Genesis of magnetic fields in isolated white dwarfs
• Many-body forces in magnetic neutron stars
• On the maximum mass of magnetised white dwarfs
• The internal composition of proto-neutron stars under strong magnetic fields
• Luminosity and cooling of highly magnetized white dwarfs: suppression of luminosity by strong magnetic fields
• A fast spinning magnetic white dwarf in the double-degenerate, super-Chandrasekhar system NLTT 12758
• Modeling anisotropic magnetized White Dwarfs with $\gamma$ metric
• Equilibrium structure of white dwarfs at finite temperatures
• Maximum mass of magnetic white dwarfs
• Discovery of a Sirius-like binary system with a very strongly magnetic white dwarf. Binarity among magnetic white dwarfs
• A Magnetic White Dwarf with Five H$\alpha$ Components
• Clues to the origin and properties of magnetic white dwarfs

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• Speed of Sound for Hadronic and Quark Phases in a Magnetic Field
• Neutrino Emissivities as a Probe of the Internal Magnetic Fields of White Dwarfs
• Runko: Modern multiphysics toolbox for plasma simulations
• Charged anisotropic white dwarfs in $f\left(R,T\right)$ gravity