Cooling Process of White Dwarf Stars in Palatini <i>f</i>(<i>R</i>) Gravity
Surajit Kalita,
Lupamudra Sarmah,
Aneta Wojnar
Affiliations
Surajit Kalita
High Energy Physics, Cosmology & Astrophysics Theory (HEPCAT) Group, Department of Mathematics & Applied Mathematics, University of Cape Town, Cape Town 7700, South Africa
Lupamudra Sarmah
Indian Institute of Astrophysics, Bengaluru 560034, India
Aneta Wojnar
Laboratory of Theoretical Physics, Institute of Physics, University of Tartu, W. Ostwaldi 1, 50411 Tartu, Estonia
A simple cooling model of white dwarf stars is re-analyzed in Palatini f(R) gravity. Modified gravity affects the white dwarf structures and consequently their ages. We find that the resulting super-Chandrasekhar white dwarfs need more time to cool down than sub-Chandrasekhar ones, or when compared to the Newtonian models.
