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Final fate of charged anisotropic fluid collapse in f(R) gravity
Modern Physics Letters A ( IF 1.4 ) Pub Date : 2020-07-22 , DOI: 10.1142/s0217732320502387
Suhail Khan 1 , Muhammad Shoaib Khan 1 , Amjad Ali 2
Affiliation  

In this paper, the spherically symmetric gravitational collapse of anisotropic fluid in the presence of charge in metric [Formula: see text] theory is analyzed. We consider the static and non static spherically symmetric spacetimes for outer and inner regions of collapsing object respectively. For the smooth matching of inner and outer regions, the Senovilla as well as Darmois matching conditions are utilized. The closed form solutions are obtained from field equations. Moreover, we examine the apparent horizons and their physical significance. The effect of cosmological constant and [Formula: see text] term is same and the collapsing rate speeds up as compared to that of anisotropic fluid case when the electromagnetic field is introduced. Electromagnetic charge also affects the time interval of singularities and cosmological horizons.

中文翻译:

带电各向异性流体在 f(R) 重力下坍塌的最终命运

本文以公制[公式:见正文]理论分析了在电荷存在下各向异性流体的球对称引力坍缩理论。我们分别考虑坍缩物体的外部和内部区域的静态和非静态球对称时空。对于内部和外部区域的平滑匹配,使用了 Senovilla 和 Darmois 匹配条件。封闭形式的解是从场方程获得的。此外,我们检查了明显的视野及其物理意义。宇宙常数和[公式:见正文]项的作用相同,在引入电磁场的情况下,与各向异性流体的情况相比,坍缩速度加快。电磁电荷也影响奇点和宇宙视界的时间间隔。
更新日期:2020-07-22
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