{"title":"重力作用下巴丁恒星结构的物理属性","authors":"M. Shamir, Ammara Usman, T. Naz","doi":"10.1155/2021/4742306","DOIUrl":null,"url":null,"abstract":"The main aim of our study is to explore some relativistic configurations of compact object solution in the background of \n \n f\n \n \n R\n \n \n \n gravity, by adopting the Krori-Barua spacetime. In this regard, we establish the field equations for spherically symmetric spacetime along with charged anisotropic matter source by assuming the specific form of the metric potentials, i.e., \n \n ν\n \n \n r\n \n \n =\n B\n \n \n r\n \n \n 2\n \n \n +\n C\n \n and \n \n λ\n \n \n r\n \n \n =\n A\n \n \n r\n \n \n 2\n \n \n \n . Further, to calculate the constant values, we consider the Bardeen model as an exterior spacetime at the surface boundary. To ensure the viability of the \n \n f\n \n \n R\n \n \n \n gravity model, the physical characteristics including energy density, pressure components, energy bonds, equilibrium condition, Herrera cracking concept, mass-radius relation, and adiabatic index are analyzed in detail. It is observed that all the outcomes by graphical exploration and tabular figures show that the Bardeen black hole model describes the physically realistic stellar structures.","PeriodicalId":7498,"journal":{"name":"Advances in High Energy Physics","volume":" ","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2021-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Physical Attributes of Bardeen Stellar Structures in \\n f\\n \\n \\n R\\n \\n \\n Gravity\",\"authors\":\"M. Shamir, Ammara Usman, T. Naz\",\"doi\":\"10.1155/2021/4742306\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The main aim of our study is to explore some relativistic configurations of compact object solution in the background of \\n \\n f\\n \\n \\n R\\n \\n \\n \\n gravity, by adopting the Krori-Barua spacetime. In this regard, we establish the field equations for spherically symmetric spacetime along with charged anisotropic matter source by assuming the specific form of the metric potentials, i.e., \\n \\n ν\\n \\n \\n r\\n \\n \\n =\\n B\\n \\n \\n r\\n \\n \\n 2\\n \\n \\n +\\n C\\n \\n and \\n \\n λ\\n \\n \\n r\\n \\n \\n =\\n A\\n \\n \\n r\\n \\n \\n 2\\n \\n \\n \\n . Further, to calculate the constant values, we consider the Bardeen model as an exterior spacetime at the surface boundary. To ensure the viability of the \\n \\n f\\n \\n \\n R\\n \\n \\n \\n gravity model, the physical characteristics including energy density, pressure components, energy bonds, equilibrium condition, Herrera cracking concept, mass-radius relation, and adiabatic index are analyzed in detail. It is observed that all the outcomes by graphical exploration and tabular figures show that the Bardeen black hole model describes the physically realistic stellar structures.\",\"PeriodicalId\":7498,\"journal\":{\"name\":\"Advances in High Energy Physics\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2021-11-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advances in High Energy Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1155/2021/4742306\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, PARTICLES & FIELDS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in High Energy Physics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1155/2021/4742306","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, PARTICLES & FIELDS","Score":null,"Total":0}
引用次数: 1
摘要
本研究的主要目的是利用Krori-Barua时空,探索f - R引力背景下紧致物体解的一些相对论组态。为此,我们假设度量势的具体形式,即ν r = B r 2 + C, λ r = A r 2,建立了带电荷各向异性物质源的球对称时空场方程。此外,为了计算常数值,我们将Bardeen模型视为表面边界处的外部时空。为了保证f R重力模型的可行性,详细分析了能量密度、压力分量、能键、平衡条件、Herrera裂纹概念、质量半径关系、绝热指数等物理特性。我们观察到,所有图形探索和表格图的结果表明,巴丁黑洞模型描述了物理上真实的恒星结构。
Physical Attributes of Bardeen Stellar Structures in
f
R
Gravity
The main aim of our study is to explore some relativistic configurations of compact object solution in the background of
f
R
gravity, by adopting the Krori-Barua spacetime. In this regard, we establish the field equations for spherically symmetric spacetime along with charged anisotropic matter source by assuming the specific form of the metric potentials, i.e.,
ν
r
=
B
r
2
+
C
and
λ
r
=
A
r
2
. Further, to calculate the constant values, we consider the Bardeen model as an exterior spacetime at the surface boundary. To ensure the viability of the
f
R
gravity model, the physical characteristics including energy density, pressure components, energy bonds, equilibrium condition, Herrera cracking concept, mass-radius relation, and adiabatic index are analyzed in detail. It is observed that all the outcomes by graphical exploration and tabular figures show that the Bardeen black hole model describes the physically realistic stellar structures.
期刊介绍:
Advances in High Energy Physics publishes the results of theoretical and experimental research on the nature of, and interaction between, energy and matter. Considering both original research and focussed review articles, the journal welcomes submissions from small research groups and large consortia alike.