{"title":"各向同性球体在拉斯塔尔引力中的杜尔加帕尔-富洛里亚模型的作用","authors":"Arfa Waseem, Sunaiha Naeem","doi":"10.1007/s10714-024-03290-0","DOIUrl":null,"url":null,"abstract":"<div><p>This research deals with the impacts of Rastall parameter on the physical behavior of isotropic compact stars. For this purpose, the static spherically symmetric as well as perfect fluid distribution are taking into account. To examine the various aspects of some particular compact star models, the Durgapal-Fuloria metric functions are considered. The unknown parameters involved in Durgapal-Fuloria metric functions are computed via matching constraints with observed choices of masses and radii of few particular stellar objects. The viability of the endorsed functions is inspected through the graphical description of matter contents, energy constraints, equation of state factor, mass constituents, causality condition and stellar equation for certain values of Rastall parameter. It is determined that the stars under consideration manifest stable structures corresponding to Durgapal-Fuloria metric potentials in this framework. Further, it is exhibited that for Rastall factor equals to zero, the general results of theory of relativity can be achieved.</p></div>","PeriodicalId":578,"journal":{"name":"General Relativity and Gravitation","volume":"56 9","pages":""},"PeriodicalIF":2.1000,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Role of Durgapal-Fuloria model on isotropic spheres in Rastall gravity\",\"authors\":\"Arfa Waseem, Sunaiha Naeem\",\"doi\":\"10.1007/s10714-024-03290-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This research deals with the impacts of Rastall parameter on the physical behavior of isotropic compact stars. For this purpose, the static spherically symmetric as well as perfect fluid distribution are taking into account. To examine the various aspects of some particular compact star models, the Durgapal-Fuloria metric functions are considered. The unknown parameters involved in Durgapal-Fuloria metric functions are computed via matching constraints with observed choices of masses and radii of few particular stellar objects. The viability of the endorsed functions is inspected through the graphical description of matter contents, energy constraints, equation of state factor, mass constituents, causality condition and stellar equation for certain values of Rastall parameter. It is determined that the stars under consideration manifest stable structures corresponding to Durgapal-Fuloria metric potentials in this framework. Further, it is exhibited that for Rastall factor equals to zero, the general results of theory of relativity can be achieved.</p></div>\",\"PeriodicalId\":578,\"journal\":{\"name\":\"General Relativity and Gravitation\",\"volume\":\"56 9\",\"pages\":\"\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-09-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"General Relativity and Gravitation\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10714-024-03290-0\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ASTRONOMY & ASTROPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"General Relativity and Gravitation","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s10714-024-03290-0","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
Role of Durgapal-Fuloria model on isotropic spheres in Rastall gravity
This research deals with the impacts of Rastall parameter on the physical behavior of isotropic compact stars. For this purpose, the static spherically symmetric as well as perfect fluid distribution are taking into account. To examine the various aspects of some particular compact star models, the Durgapal-Fuloria metric functions are considered. The unknown parameters involved in Durgapal-Fuloria metric functions are computed via matching constraints with observed choices of masses and radii of few particular stellar objects. The viability of the endorsed functions is inspected through the graphical description of matter contents, energy constraints, equation of state factor, mass constituents, causality condition and stellar equation for certain values of Rastall parameter. It is determined that the stars under consideration manifest stable structures corresponding to Durgapal-Fuloria metric potentials in this framework. Further, it is exhibited that for Rastall factor equals to zero, the general results of theory of relativity can be achieved.
期刊介绍:
General Relativity and Gravitation is a journal devoted to all aspects of modern gravitational science, and published under the auspices of the International Society on General Relativity and Gravitation.
It welcomes in particular original articles on the following topics of current research:
Analytical general relativity, including its interface with geometrical analysis
Numerical relativity
Theoretical and observational cosmology
Relativistic astrophysics
Gravitational waves: data analysis, astrophysical sources and detector science
Extensions of general relativity
Supergravity
Gravitational aspects of string theory and its extensions
Quantum gravity: canonical approaches, in particular loop quantum gravity, and path integral approaches, in particular spin foams, Regge calculus and dynamical triangulations
Quantum field theory in curved spacetime
Non-commutative geometry and gravitation
Experimental gravity, in particular tests of general relativity
The journal publishes articles on all theoretical and experimental aspects of modern general relativity and gravitation, as well as book reviews and historical articles of special interest.