f (R,G,T) 重力中的重力星

IF 1.1 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

Canadian Journal of Physics Pub Date : 2024-01-31 DOI:10.1139/cjp-2023-0198

M. Ilyas

{"title":"f (R,G,T) 重力中的重力星","authors":"M. Ilyas","doi":"10.1139/cjp-2023-0198","DOIUrl":null,"url":null,"abstract":"The article examines the matter of gravitational vacuum stars, or gravastars, in the context of f(R,G,T) gravity, where R, G and T refer the Ricci Scalar, Gauss-Bonnet invariant term and Trace of energy momentum tensor. Here, using certain suitable numerical approaches, solutions to the highly nonlinear differential equations are determined. For a well-known f( R,G,T) gravity cosmological model, the main structure of gravastars has been discussed according to core, shell, and external region. It is illustrated graphically how the relationship between mass and radius has evolved for the gravastar under consideration.","PeriodicalId":9413,"journal":{"name":"Canadian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Gravastars in f (R,G,T) Gravity\",\"authors\":\"M. Ilyas\",\"doi\":\"10.1139/cjp-2023-0198\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The article examines the matter of gravitational vacuum stars, or gravastars, in the context of f(R,G,T) gravity, where R, G and T refer the Ricci Scalar, Gauss-Bonnet invariant term and Trace of energy momentum tensor. Here, using certain suitable numerical approaches, solutions to the highly nonlinear differential equations are determined. For a well-known f( R,G,T) gravity cosmological model, the main structure of gravastars has been discussed according to core, shell, and external region. It is illustrated graphically how the relationship between mass and radius has evolved for the gravastar under consideration.\",\"PeriodicalId\":9413,\"journal\":{\"name\":\"Canadian Journal of Physics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2024-01-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Canadian Journal of Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1139/cjp-2023-0198\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Canadian Journal of Physics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1139/cjp-2023-0198","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

文章在f(R,G,T)引力的背景下研究了引力真空星（或称引力星）的问题，其中R、G和T指的是利玛窦标量、高斯-波奈不变项和能量动量张量的痕量。在这里，利用某些合适的数值方法，可以确定高度非线性微分方程的解。针对著名的 f( R,G,T) 引力宇宙学模型，按照核心、外壳和外部区域讨论了引力星的主要结构。图解说明了质量与半径之间的关系是如何在所考虑的引力星中演变的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Gravastars in f (R,G,T) Gravity

The article examines the matter of gravitational vacuum stars, or gravastars, in the context of f(R,G,T) gravity, where R, G and T refer the Ricci Scalar, Gauss-Bonnet invariant term and Trace of energy momentum tensor. Here, using certain suitable numerical approaches, solutions to the highly nonlinear differential equations are determined. For a well-known f( R,G,T) gravity cosmological model, the main structure of gravastars has been discussed according to core, shell, and external region. It is illustrated graphically how the relationship between mass and radius has evolved for the gravastar under consideration.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Canadian Journal of Physics 物理-物理：综合

CiteScore

2.30

自引率

8.30%

发文量

审稿时长

1.7 months

期刊介绍： The Canadian Journal of Physics publishes research articles, rapid communications, and review articles that report significant advances in research in physics, including atomic and molecular physics; condensed matter; elementary particles and fields; nuclear physics; gases, fluid dynamics, and plasmas; electromagnetism and optics; mathematical physics; interdisciplinary, classical, and applied physics; relativity and cosmology; physics education research; statistical mechanics and thermodynamics; quantum physics and quantum computing; gravitation and string theory; biophysics; aeronomy and space physics; and astrophysics.