Physics of the Dark Universe ( IF 5.0 ) Pub Date : 2020-11-10 , DOI: 10.1016/j.dark.2020.100738 Anil Kumar Yadav , A.M. Alshehri , Nafis Ahmad , G.K. Goswami , Mukesh Kumar
In this paper we investigate a Bianchi type I transitioning Universe in Brans–Dicke theory. To get an explicit solution of the field equations, we assume scalar field as with , , and as constants. The values of and are obtained by probing the proposed model with recent observational Hubble data (OHD) points. The interacting and non-interacting scenarios between dark matter and dark energy of the derived Universe within the framework of Brans–Dicke gravity are investigated. The analysis of the Universe in derived model shows that the Universe is filled with dynamical dark energy with its equation of state parameter . Hence the Universe behaves like a quintessence model at present epoch. Some physical properties of the Universe are also discussed.
中文翻译:
在Bianchi I时空中用混合标量场转换宇宙
在本文中,我们研究了Brans–Dicke理论中的Bianchi I类过渡宇宙。为了得到场方程的显式解,我们假设标量场为 与 , , 和 作为常量。的值 和 通过使用最近的观测哈勃数据(OHD)点探查所提议的模型获得。在布朗斯-迪克引力的框架内,研究了衍生宇宙的暗物质与暗能量之间相互作用和不相互作用的情况。的 派生模型中的宇宙分析表明,宇宙充满了动态暗能量及其状态参数方程 。因此,在当前时代,宇宙的行为就像一个典型模型。还讨论了宇宙的一些物理性质。