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Anisotropic strange quintessence stars in f(R,G) gravity
International Journal of Geometric Methods in Modern Physics ( IF 2.1 ) Pub Date : 2020-10-06 , DOI: 10.1142/s0219887820502163
M. Farasat Shamir 1 , G. Mustafa 2 , Mahroz Javed 1
Affiliation  

This paper is devoted to formulate a new model of quintessence anisotropic compact stars in the modified [Formula: see text] gravity. Dynamical equations in modified theory consisting of anisotropic fluid along with quintessence field have been evaluated by adopting analytical solution of Krori–Barua. In order to determine the unknown constraints of Krori–Barua metric observational data of different stars, [Formula: see text]-[Formula: see text], [Formula: see text], [Formula: see text]-[Formula: see text] has been taken into account. To solve the dynamical equations Starobinsky-like model, [Formula: see text] of modified gravity has been used. The outcome of the results depicts that all the examined celestial bodies are free from central singularity and are physically stable. Different physical parameters, such as energy density, energy conditions, evolution of quintessence and compactness factor, have been reviewed in detail.

中文翻译:

f(R,G) 引力中的各向异性奇异精星

本文致力于在修改后的[公式:见正文]引力下建立一种新的精粹各向异性致密星模型。采用Krori-Barua的解析解,对各向异性流体与典型场组成的修正理论中的动力学方程进行了评估。为了确定不同恒星Krori-Barua度量观测数据的未知约束,[公式:见文]-[公式:见文]、[公式:见文]、[公式:见文]-[公式:见文text] 已被考虑在内。为了求解类 Starobinsky 模型的动力学方程,使用了修正重力的 [公式:见正文]。结果表明,所有被检查的天体都没有中心奇点,并且在物理上是稳定的。不同的物理参数,例如能量密度,
更新日期:2020-10-06
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