Neutron star collapse from accretion: A probe of massive dark matter particles

被引：0
|
作者：
Liu, Ning [1 ]
Mishra, Arvind Kumar [1 ]
机构：
[1] Nanjing Normal Univ, Dept Phys, Nanjing 230021, Peoples R China
来源：
PHYSICS OF THE DARK UNIVERSE | 2025年 / 47卷
基金：
中国国家自然科学基金;
关键词：
Dark matter capture on neutron star; Multiscatter capture; Black hole formation; Massive dark matter constraint; Probe of non-constant dark matter-baryon; interaction; CAPTURE;
D O I：
10.1016/j.dark.2024.101740
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We explore the multi-scatter capturing of the massive dark matter (DM) particle inside the neutron star via a momentum-dependent dark matter-nucleon scattering cross-section. We find that the capturing enhanced for the positive velocity and momentum transfer dependent DM-nucleon scattering in comparison with the constant cross-section case. Further, a large capture of the DM particles can be thermalized and lead to black hole formation and, therefore, destroy the neutron star. Using the observation of the old neutron star in the DM-dominated region, we obtain strong constraints on massive DM parameters.
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页数：9
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