Impact of equation of state on fluid spheres in Finselarian gravity

IF 6.4 2区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Physics of the Dark Universe Pub Date : 2025-02-26 DOI:10.1016/j.dark.2025.101873
Allah Ditta , Rubab Manzoor , Faisal Javed , Muhammad Aslam , Muhammad Yousaf Malik , Guzalxon Belalova
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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 u0(r) involved in Finselsian gravity. We analyze the configurations using the data for the mass and radius for compact candidates HerX1,SMCX1,LMCX4,CenX3. 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.
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状态方程对芬塞尔引力中流体球体的影响
本文的动机是研究球对称时空坐标系中紧体在芬塞拉引力作用下的构形。为了检验引力对致密恒星结构的影响,我们使用了球对称时空的托尔曼-库chowicz分量。我们用线性状态方程求出芬塞尔引力中涉及的函数u0 ' (r)。我们利用紧致候选者HerX−1、SMCX−1、LMCX−4、CenX−3的质量和半径数据分析了它们的构型。这里考虑的所有恒星结构都是稳定的,理想情况下没有中心奇点。详细的图形研究表明,天体地层中的一些物理性质,如密度、压力、声速、TOV力、质量函数和紧致性,对它们的形成至关重要。此外,我们得出结论,我们的恒星模型表现良好,是可以接受的。
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来源期刊
Physics of the Dark Universe
Physics of the Dark Universe ASTRONOMY & ASTROPHYSICS-
CiteScore
9.60
自引率
7.30%
发文量
118
审稿时长
61 days
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.
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