Dynamical Anisotropic Dark Energy Cosmological Model in General Relativity

IF 0.4 Q4 MATHEMATICS
D. Reddy, Y. Aditya, G. Ramesh
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引用次数: 6

Abstract

ABSTRACT We have investigated an anisotropic dark energy cosmological model in the presence of anisotropic dark energy fluid coupled with mass less scalar field in KantowskiSachs space-time in general theory of relativity. A physically viable dark energy cosmological model is presented using (i) a hybrid expansion law proposed by Akarsu et al. (JCAP. 01, 022: 2014) and (ii) a relation between the metric potential. The dark energy density, the equation of state (EoS) parameter and the skewness parameters of the model are determined and their physical siguificance is pointed out. The deceleration parameter and the jerk parameter of the model show that there is a smooth transition of the uuiverse from early deceleration to late time acceleration which confirms the observations modem cosmology.
广义相对论中的动态各向异性暗能量宇宙学模型
摘要研究了广义相对论中KantowskiSachs时空中各向异性暗能量流体与无质量标量场耦合存在的各向异性暗能量宇宙学模型。利用Akarsu等人(JCAP)提出的混合膨胀定律,提出了一个物理上可行的暗能量宇宙学模型。(01, 022: 2014)和(ii)度量势之间的关系。确定了模型的暗能量密度、状态方程参数和偏度参数,并指出了它们的物理意义。模型的减速参数和猛跳参数表明,宇宙存在从早期减速到后期加速的平滑过渡,这证实了现代宇宙学的观测结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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