Strange quark star models from Rastall gravity

被引：14

作者：

Banerjee, Ayan ^{[1
]}

Tangphati, Takol ^{[2
]}

Hansraj, Sudan ^{[1
]}

Pradhan, Anirudh ^{[3
]}

机构：

[1] Univ KwaZulu Natal, Sch Math Stat & Comp Sci, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban, South Africa

[2] King Mongkuts Univ Technol Thonburi, Fac Sci, Theoret & Computat Sci Ctr TaCS, Theoret & Computat Phys Grp, 126 Prachauthid Rd, Bangkok 10140, Thailand

[3] GLA Univ, Ctr Cosmol Astrophys & Space Sci, Mathura 281406, Uttar Pradesh, India

来源：

ANNALS OF PHYSICS | 2023年 / 451卷

基金：

新加坡国家研究基金会;

关键词：

Compact star; Quark matter; Rastall gravity; EINSTEIN;

D O I：

10.1016/j.aop.2023.169267

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the possible existence of strange matter in the interior of compact stars in Rastall gravity. The main feature of the Rastall gravity is the covariant derivative of the energy-momentum tensor does not vanish and depends on the curvature R and a free parameter eta. We consider the MIT bag model in the present work and numerically solve the modified Tolman-Oppenheimer- Volkoff (TOV) equations. We investigate the effect of the Rastall parameter eta on the mass-radius and the mass-central energy density relation of quark stars. From the quark star masses and radii obtained, we conclude that eta has significant consequences on the structure of stellar objects.(c) 2023 Elsevier Inc. All rights reserved.

引用

页数：11

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