A new solution of Einstein’s field equations in isotropic coordinates

IF 1.1 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Journal of Astrophysics and Astronomy Pub Date : 2024-06-13 DOI:10.1007/s12036-024-10006-y

B. S. Ratanpal, BHAVESH Suthar

引用次数: 0

Abstract

In this work, an exact solution of Einstein’s field equations in isotropic coordinates for anisotropic matter distribution is obtained by considering a particular metric choice of metric potential \(g_{rr}\). To check the feasibility of the model, we have investigated all the physical characteristics of a realistic star. It is found that the model is potentially stable, and the adiabatic index is greater than \(\frac{4}{3}\). The model has been analyzed for compact star 4U 1538-52.

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各向同性坐标下爱因斯坦场方程的新解

在这项工作中，通过考虑特定度量选择的度量势 \(g_{rr}\)，得到了各向异性物质分布的各向同性坐标下爱因斯坦场方程的精确解。为了检验模型的可行性，我们研究了现实恒星的所有物理特征。结果发现该模型是潜在稳定的，绝热指数大于 \(\frac{4}{3}\)。该模型针对紧凑恒星 4U 1538-52 进行了分析。

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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来源期刊

Journal of Astrophysics and Astronomy 地学天文-天文与天体物理

CiteScore

1.80

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： The journal publishes original research papers on all aspects of astrophysics and astronomy, including instrumentation, laboratory astrophysics, and cosmology. Critical reviews of topical fields are also published. Articles submitted as letters will be considered.