在满足 Vaidya - Tikekar 公设的 f(Q) 重力下的带电各向异性流体球体

IF 1.9 4区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS
Simranjeet Kaur , S.K. Maurya , Sacheendra Shukla , B. Dayanandan
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引用次数: 0

摘要

在本文中,我们研究了 f(Q)引力理论中带电各向异性和球面对称紧凑恒星的性质。场方程是利用 MIT-Bag 状态方程(EoS)和 Vaidya-Tikekar 势求解的。然而,电荷的具体形式 E2(r)=q0L2r2(1+Lr2)2 被用来研究带电紧凑星模型。内部电荷各向异性解与带电的施瓦兹希尔德(反)-德-西特度量相匹配。这项研究特别针对了不同的紧凑星,即 EXO 1785-248、PSR J1614-2230、PSR J0740+620 和 SMC X-1。我们预测了这些紧凑型恒星的质量半径比,并通过恒星的因果关系条件、物质变量、能量约束、修正的TOV方程和绝热指数等行为检验了模型的物理可行性。总之,我们观测到了一个在 f(Q) 引力下带电荷物质分布的紧凑星模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Charged anisotropic fluid sphere in f(Q) gravity satisfying Vaidya - Tikekar metric

In this paper, we study the properties of electrically charged anisotropic and spherically symmetric compact stars in f(Q) gravity theory. The field equations have been solved using the MIT-Bag Equation of State (EoS) along with the Vaidya–Tikekar potential. However, the specific form of charge E2(r)=q0L2r2(1+Lr2)2 has been used to study the charged compact star model. The interior charge anisotropic solution has been matched with the charged Schwarzchild-(Anti)-de-Sitter metric. In particular, this study has been conducted on different compact stars viz, EXO 1785-248, PSR J1614-2230, PSR J0740+620 and SMC X-1. The mass–radius ratio of these compact stars has been predicted, and the physical viability of the model has been checked through the behaviour of causality condition, matter variables, energy constraints, modified TOV equation, and adiabatic index of the star. In conclusion, we observe a well-behaved model of a compact star in f(Q) gravity with charged matter distribution.

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来源期刊
New Astronomy
New Astronomy 地学天文-天文与天体物理
CiteScore
4.00
自引率
10.00%
发文量
109
审稿时长
13.6 weeks
期刊介绍: New Astronomy publishes articles in all fields of astronomy and astrophysics, with a particular focus on computational astronomy: mathematical and astronomy techniques and methodology, simulations, modelling and numerical results and computational techniques in instrumentation. New Astronomy includes full length research articles and review articles. The journal covers solar, stellar, galactic and extragalactic astronomy and astrophysics. It reports on original research in all wavelength bands, ranging from radio to gamma-ray.
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