Allah Ditta , Rubab Manzoor , Faisal Javed , Muhammad Aslam , Muhammad Yousaf Malik , Guzalxon Belalova
{"title":"Impact of equation of state on fluid spheres in Finselarian gravity","authors":"Allah Ditta , Rubab Manzoor , Faisal Javed , Muhammad Aslam , Muhammad Yousaf Malik , Guzalxon Belalova","doi":"10.1016/j.dark.2025.101873","DOIUrl":null,"url":null,"abstract":"<div><div>The motivation behind this article is studying the configurations of compact bodies under the effects of Finselarian gravity in spherical symmetric spacetime coordinates. To examine the effects of gravity on compact stellar configurations, we use the Tolman–Kuchowicz components for spherical symmetric spacetime. We use the linear equation of state to find the function <span><math><mrow><msubsup><mrow><mi>u</mi></mrow><mrow><mn>0</mn></mrow><mrow><msup><mrow></mrow><mrow><mo>′</mo></mrow></msup></mrow></msubsup><mrow><mo>(</mo><mi>r</mi><mo>)</mo></mrow></mrow></math></span> involved in Finselsian gravity. We analyze the configurations using the data for the mass and radius for compact candidates <span><math><mrow><mi>H</mi><mi>e</mi><mi>r</mi><mspace></mspace><mi>X</mi><mo>−</mo><mn>1</mn><mo>,</mo><mspace></mspace><mi>S</mi><mi>M</mi><mi>C</mi><mspace></mspace><mi>X</mi><mo>−</mo><mn>1</mn><mo>,</mo><mspace></mspace><mi>L</mi><mi>M</mi><mi>C</mi><mspace></mspace><mi>X</mi><mo>−</mo><mn>4</mn><mo>,</mo><mspace></mspace><mi>C</mi><mi>e</mi><mi>n</mi><mspace></mspace><mi>X</mi><mo>−</mo><mn>3</mn></mrow></math></span>. All the star structures that are considered here are stable and ideally free of a central singularity. A detailed graphical investigation reveals that several physical properties, such as density, pressures, sound speeds, TOV forces, mass function, and compactification implemented in celestial formations are critical to their formation. Moreover, we conclude that our stellar models behave well and are acceptable.</div></div>","PeriodicalId":48774,"journal":{"name":"Physics of the Dark Universe","volume":"48 ","pages":"Article 101873"},"PeriodicalIF":5.0000,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of the Dark Universe","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2212686425000676","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
引用次数: 0
Abstract
The motivation behind this article is studying the configurations of compact bodies under the effects of Finselarian gravity in spherical symmetric spacetime coordinates. To examine the effects of gravity on compact stellar configurations, we use the Tolman–Kuchowicz components for spherical symmetric spacetime. We use the linear equation of state to find the function involved in Finselsian gravity. We analyze the configurations using the data for the mass and radius for compact candidates . All the star structures that are considered here are stable and ideally free of a central singularity. A detailed graphical investigation reveals that several physical properties, such as density, pressures, sound speeds, TOV forces, mass function, and compactification implemented in celestial formations are critical to their formation. Moreover, we conclude that our stellar models behave well and are acceptable.
期刊介绍:
Physics of the Dark Universe is an innovative online-only journal that offers rapid publication of peer-reviewed, original research articles considered of high scientific impact.
The journal is focused on the understanding of Dark Matter, Dark Energy, Early Universe, gravitational waves and neutrinos, covering all theoretical, experimental and phenomenological aspects.