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Compact stellar models in modified gravity
International Journal of Modern Physics D ( IF 2.2 ) Pub Date : 2021-04-29 , DOI: 10.1142/s0218271821400034
Ines G. Salako 1, 2, 3 , Chayan Ranjit 4 , M. Khlopov 5, 6, 7 , Saibal Ray 8 , Utpal Mukhopadhyay 9
Affiliation  

In the present investigation, compact stellar models are dealt with in the framework of the modified gravity theory, specifically of f(𝕋,𝒯 ) type. We have considered that the compact objects are following a spherically symmetric static metric and obtained the Einstein field equations in the spacetime of f(𝕋,𝒯 ). To make the Einstein equations solvable, we employ the methodology of conformal Killing vectors. Thereafter by using the MIT bag equation of state to the compact stars, considering that the stars are formed by strange quark, we find the solutions set. The solutions are examined via several physical testings which exhibit viability of the model.

中文翻译:

修正重力的紧凑型恒星模型

在本研究中,致密恒星模型是在修正引力理论的框架内处理的,特别是F(𝕋,𝒯 )类型。我们考虑了致密物体遵循球对称静态度量,得到了时空中的爱因斯坦场方程F(𝕋,𝒯 ). 为了使爱因斯坦方程可解,我们采用保形 Killing 向量的方法。此后通过对致密恒星使用 MIT bag 状态方程,考虑到恒星是由奇异夸克形成的,我们找到了解集。解决方案通过展示模型可行性的几个物理测试进行检查。
更新日期:2021-04-29
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