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arXiv · 2507.11601

Gravothermal Pile-Up of Collisional Dark Matter Around Compact Objects

Reza Ebadi·Erwin H. Tanin
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Abstract

The dark matter may consist of multiple species that interact differently. We show that a species that is cosmologically subdominant but highly collisional can pile up and become dominant in deep gravitational wells, such as those of white dwarfs and neutron stars.

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Reza Ebadi, Erwin H. Tanin. 2025-07-15. Gravothermal Pile-Up of Collisional Dark Matter Around Compact Objects. https://arxiv.org/abs/2507.11601

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