物理大讲堂-青年学者论坛(71)(在线报告)

时间:2020-06-15    点击:

报告题目:Existence of Stable Stellar structures in f(R,T) Gravity

报告人:Muhammad Ilyas(Gomal University)

报告时间:2020年6月16日(星期二) 15:30(北京时间)

报告地点:在线报告 (ZOOM ID:646 0359 9712)

点击链接入会:https://cernet.zoom.com.cn/j/64603599712

报告摘要:In this talk, we study the impact of three different f (R,T ) gravity models in the modeling of anisotropic relativistic stellar structures, where R is the Ricci scalar and T is the trace of the energy-momentum tensor. For this purpose, we assume static geometry of spherically symmetric self-gravitating object and after choosing appropriate vacuum solution, we evaluated some constraints for the smooth matching of exterior and interior geometries at the boundary surface. We considered observational values of three well-known stellar structures and checked the viability of energy conditions in the presence of quadratic, exponential and cubic f (R,T ) gravity models. The distributions of energy density, behavior of anisotropic pressure, role of fundamental gravitational forces as well as stability investigation have been performed through plots in the realistic modeling of compact stars. We infer that modified gravitational theories could be treated as viable tool to study the existence of compact stellar structures at both theoretical and cosmological scales.

 

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     澳门威尼娱乐理论物理中心

 

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