18-23 March 2018
Florianopolis, Brazil
America/Sao_Paulo timezone

Compact stars as a test for modified gravity theories

20 Mar 2018, 15:20
Florianopolis, Brazil

Florianopolis, Brazil



Manuel Malheiro (ITA)


We investigate the equilibrium configurations of neutron stars, quark stars and white dwarfs in a modified gravity theory, namely, $f(R,T)$ gravity, for which $R$ and $T$ stand for the Ricci scalar and trace of the energy-momentum tensor, respectively. Considering the functional form $f(R,T)=R+2\lambda T$, with $\lambda$ being a constant, we obtain the hydrostatic equilibrium equation for the theory. Some physical properties of compact stars, such as: mass, radius, pressure and energy density, as well as their dependence on the parameter $\lambda$ are derived.

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