一个行为良好的各向异性奇异星模型

IF 1 4区物理与天体物理 Q3 PHYSICS, MATHEMATICAL

Advances in Mathematical Physics Pub Date : 2022-11-18 DOI:10.1155/2022/7243750

Amos V. Mathias, J. Sunzu

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引用次数: 2

摘要

利用爱因斯坦场方程，我们得到了一个新的致密恒星物体的非奇异精确模型。该模型与夸克物质各向异性的恒星在没有电场的情况下是一致的。我们的处理考虑了静态和球对称的时空几何。对其中一个引力势的有理形式进行了Ansatz，以产生物理上可容许的结果。通过分析托尔曼-奥本海默-沃尔科夫（TOV）方程，测试了恒星内部引力、流体静力和各向异性力的平衡。产生了几个质量和半径与过去观测结果相当的恒星物体。我们的模型遵循不同的稳定性测试和能量条件。势、物质变量、稳定性和能量条件的剖面表现良好。

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A Well-Behaved Anisotropic Strange Star Model

We obtain a new nonsingular exact model for compact stellar objects by using the Einstein field equations. The model is consistent with stellar star with anisotropic quark matter in the absence of electric field. Our treatment considers spacetime geometry which is static and spherically symmetric. Ansatz of a rational form of one of the gravitational potentials is made to generate physically admissible results. The balance of gravitational, hydrostatic, and anisotropic forces within the stellar star is tested by analysing the Tolman-Oppenheimer-Volkoff (TOV) equation. Several stellar objects with masses and radii comparable with observations found in the past are generated. Our model obeys different stability tests and energy conditions. The profiles for the potentials, matter variables, stability, and energy conditions are well behaved.

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来源期刊

Advances in Mathematical Physics 数学-应用数学

CiteScore

2.40

自引率

8.30%

发文量

151

审稿时长

>12 weeks

期刊介绍： Advances in Mathematical Physics publishes papers that seek to understand mathematical basis of physical phenomena, and solve problems in physics via mathematical approaches. The journal welcomes submissions from mathematical physicists, theoretical physicists, and mathematicians alike. As well as original research, Advances in Mathematical Physics also publishes focused review articles that examine the state of the art, identify emerging trends, and suggest future directions for developing fields.