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Magnetized and rotating white dwarfs within Hartle's formalism in general relativity
Author(s) -
Alvear Terrero D.,
Manreza Paret D.,
Pérez Martínez A.
Publication year - 2017
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.201713435
Subject(s) - physics , white dwarf , formalism (music) , moment of inertia , classical mechanics , magnetic field , general relativity , rotation (mathematics) , angular velocity , inertia , perpendicular , stars , quantum electrodynamics , astrophysics , quantum mechanics , geometry , art , musical , mathematics , visual arts
Magnetized equations of state are considered to study rotating white dwarfs within Hartle's formalism by solving the field equations that describe the equilibrium configurations in the slow rotation approximation. In particular, we discuss the effects on the mass, angular velocity, moment of inertia, and deformation. Rotation effects decrease with the density, and the mass increases by about 7% with respect to the static counterpart. The magnetic field produces slight changes with respect to the corresponding nonmagnetized configuration, while perpendicular and parallel pressure solutions differ even for low values of the magnetic field.