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arXiv · 2006.06421

Stellar structure of quark stars in a modified Starobinsky gravity

Arun Mathew·Muhammed Shafeeque·Malay K. Nandy
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Abstract

We propose a form of gravity-matter interaction given by $\omega RT$ in the framework of $f(R,T)$ gravity and examine the effect of such interaction in spherically symmetric compact stars. Treating the gravity-matter coupling as a perturbative term on the background of Starobinsky gravity, we develop a perturbation theory for equilibrium configurations. For illustration, we take the case of quark stars and explore their various stellar properties. We find that the gravity-matter coupling causes an increase in the stable maximal mass which is relevant for recent observations on binary pulsars.

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Arun Mathew, Muhammed Shafeeque, Malay K. Nandy. 2020-06-10. Stellar structure of quark stars in a modified Starobinsky gravity. https://doi.org/10.1140/epjc%2Fs10052-020-8130-4

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