论文标题

具有变速参数的磁化宇宙学模型

Magnetized cosmological model with variable deceleration parameter

论文作者

Tarai, Sankarsan, Esmaeili, Fakhereh Md., Mishra, B., Tripathy, S. K.

论文摘要

在本文中,我们在各向异性时空背景和存在磁场的情况下以扩展的重力理论得出了场方程。模型的物理和几何参数是使用某些代数方法根据哈勃参数确定的。引入了时间变化的量表因子来分析模型的行为。从某种诊断方法中,我们发现该模型在宇宙进化的后期时的行为为$λ_{CDM} $模型。

In this paper, we have derived the field equations in an extended theory of gravity in an anisotropic space time background and in the presence of magnetic field. The physical and geometrical parameters of the models are determined with respect to the Hubble parameter using some algebraic approaches. A time varying scale factor has been introduced to analyze the behavior of the model. From some diagnostic approach, we found that the model behaves as $Λ_{CDM}$ model at late time of cosmic evolution.

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