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arXiv · 2007.03012

Neutron Stars in f(R)-Gravity and Its Extension with a Scalar Axion Field

Artyom V. Astashenok·Sergei D. Odintsov
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Abstract

We present a brief review of general results about non-rotating neutron stars in simple R-square gravity and its extension with a scalar axion field. Modified Einstein equations are presented for metrics in isotropical coordinates. The mass-radius relation, mass profile and dependence of mass from central density on various equations of state are given in comparison to general relativity.

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Artyom V. Astashenok, Sergei D. Odintsov. 2020-07-06. Neutron Stars in f(R)-Gravity and Its Extension with a Scalar Axion Field. https://doi.org/10.3390/particles3030036

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