Compact Stars Sourced by Dark Matter Halos and Their Frozen States
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arXiv
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866914271994052608 |
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| author | Yue, Yuan Wang, Yong-Qiang |
| author_facet | Yue, Yuan Wang, Yong-Qiang |
| contents | Inspired by regular black holes (RBHs) sourced by dark matter halos, we generalize the anisotropic energy-momentum tensor by relaxing the $P_r = -ρ$ condition between radial pressure and density. We demonstrate that while RBHs are a unique special case, a broader class of relations yields horizonless compact stars. Under specific parameter limits, these objects approach a ``frozen state," mimicking black hole features without an event horizon. These compact star solutions could satisfy weak energy conditions and provide a robust mechanism for dark matter-sourced black hole mimickers. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2601_15415 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Compact Stars Sourced by Dark Matter Halos and Their Frozen States Yue, Yuan Wang, Yong-Qiang General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena High Energy Physics - Theory Inspired by regular black holes (RBHs) sourced by dark matter halos, we generalize the anisotropic energy-momentum tensor by relaxing the $P_r = -ρ$ condition between radial pressure and density. We demonstrate that while RBHs are a unique special case, a broader class of relations yields horizonless compact stars. Under specific parameter limits, these objects approach a ``frozen state," mimicking black hole features without an event horizon. These compact star solutions could satisfy weak energy conditions and provide a robust mechanism for dark matter-sourced black hole mimickers. |
| title | Compact Stars Sourced by Dark Matter Halos and Their Frozen States |
| topic | General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena High Energy Physics - Theory |
| url | https://arxiv.org/abs/2601.15415 |