Metric-affine effects in crystallization processes of white dwarfs - INSPIRE

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Metric-affine effects in crystallization processes of white dwarfs

Dec 9, 2022

10 pages

Published in:

Phys.Rev.D 107 (2023) 4, 044072

Published: Feb 15, 2023

e-Print:

2212.04918 [gr-qc]

DOI:

10.1103/PhysRevD.107.044072 (publication)

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Abstract: (APS)

We analyze the effects of modified gravity on specific heats of electrons and ions, Debye temperature, crystallization process, and cooling mechanism in white dwarfs. We derive the Lane-Emden-Chandrasekhar equation and relate it to the cooling process equations for Palatini

f (R)

gravity. Moreover, for the first time in the literature, we show that the gravity model plays a crucial role not only in the mass and size of the white dwarf, but also affects their internal properties. We further demonstrate that modified gravity can decrease the cooling age significantly.

Note:

10 pages with 8 figures; version accepted for publication in PRD

References(78)

Figures(9)

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