论文标题

f(r)重力中的中子星及其带标轴轴场的延伸

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

论文作者

Astashenok, Artyom V., Odintsov, Sergei D.

论文摘要

我们对简单的R平方重力中的非旋转中子星及其具有标量轴向场的扩展进行了简要综述。对各向同性坐标的指标提出了改良的爱因斯坦方程。与一般相对论相比,给出了中央密度对各个状态方程的质量关系,质量谱和质量的依赖性。

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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