Dark matter effects on the properties of neutron stars: Compactness and tidal deformability,Physical Review D

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Dark matter effects on the properties of neutron stars: Compactness and tidal deformability
Physical Review D ( IF 4.6 ) Pub Date : 2024-07-16 , DOI: 10.1103/physrevd.110.023024
Hong-Ming Liu _{1,

2,

2,

3} , Jin-Biao Wei ₄ , Zeng-Hua Li _{1,

2,

2,

3} , G. F. Burgio _{5,

6} , H. C. Das _{5,

6} , H.-J. Schulze _{5,

6}

Affiliation

We systematically study the observable properties of dark-matter admixed neutron stars with arbitrary dark-matter fraction, employing a realistic nuclear equation of state in combination with self-interacting fermionic dark matter respecting constraints on the self-interaction cross section. Deviations from universal relations valid for nucleonic neutron stars are analyzed over the whole parameter space of the model and unequivocal signals for the presence of dark matter in neutron stars are identified.

中文翻译：

暗物质对中子星特性的影响：致密性和潮汐可变形性

我们系统地研究了具有任意暗物质分数的暗物质混合中子星的可观测特性，采用现实的核状态方程与自相互作用费米子暗物质相结合，尊重自相互作用截面的约束。在模型的整个参数空间上分析了对核子中子星有效的普遍关系的偏差，并识别出中子星中存在暗物质的明确信号。

更新日期：2024-07-17

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