{"title":"各向同性坐标下爱因斯坦场方程的新解","authors":"B. S. Ratanpal, BHAVESH Suthar","doi":"10.1007/s12036-024-10006-y","DOIUrl":null,"url":null,"abstract":"<p>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 <span>\\(g_{rr}\\)</span>. 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 <span>\\(\\frac{4}{3}\\)</span>. The model has been analyzed for compact star 4U 1538-52.</p>","PeriodicalId":610,"journal":{"name":"Journal of Astrophysics and Astronomy","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A new solution of Einstein’s field equations in isotropic coordinates\",\"authors\":\"B. S. Ratanpal, BHAVESH Suthar\",\"doi\":\"10.1007/s12036-024-10006-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>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 <span>\\\\(g_{rr}\\\\)</span>. 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 <span>\\\\(\\\\frac{4}{3}\\\\)</span>. The model has been analyzed for compact star 4U 1538-52.</p>\",\"PeriodicalId\":610,\"journal\":{\"name\":\"Journal of Astrophysics and Astronomy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2024-06-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Astrophysics and Astronomy\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1007/s12036-024-10006-y\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ASTRONOMY & ASTROPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Astrophysics and Astronomy","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s12036-024-10006-y","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
A new solution of Einstein’s field equations in isotropic coordinates
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.
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.
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