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Title: Study the effects of anisotropy on the highly magnetized white dwarfs
The equilibrium configuration of white dwarfs composed of anisotropic fluid distribution in the presence of a strong magnetic field is investigated in this work. By considering a functional form of the anisotropic stress and magnetic field profile, some physical properties of magnetized white dwarfs, such as mass, radius, density, radial and tangential pressures, are derived; their dependency on the anisotropy and central magnetic field is also explored. We show that the orientations of the magnetic field along the radial direction or orthogonal to the radial direction influence the stellar structure and physical properties of white dwarfs significantly. Importantly, we show that ignoring anisotropy governed by the fluid due to its high density in the presence of a strong magnetic field would destabilize the star. Through this work, we can explain the highly massive progenitor for peculiar over-luminous type Ia supernovae, and low massive progenitor for under-luminous type Ia supernovae, which poses a question of considering 1.4 solar mass white dwarf to be related to the standard candle.  more » « less
Award ID(s):
2012152
PAR ID:
10420986
Author(s) / Creator(s):
; ;
Editor(s):
R. Ruffini and G. Vereshchagin
Date Published:
Journal Name:
Proceedings of the MG16 Meeting on General Relativity
Page Range / eLocation ID:
4532 to 4544
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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