Compact Stars Sourced by Perfect Fluid Dark Matter Halos
Fuente:
arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866914291401097216 |
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| author | Yue, Yuan Wang, Yong-Qiang |
| author_facet | Yue, Yuan Wang, Yong-Qiang |
| contents | Recent studies have shown that dark matter halos can support regular black holes or compact stars by assuming an anisotropic energy-momentum tensor. In this paper, we extend the analysis to the dark matter halo as an isotropic perfect fluid. By employing galactic dark matter profiles-specifically the Einasto and Dehnen models-as the mass-energy density source, we numerically solve the Einstein field equations and find a class of non-singular, horizonless compact star solutions. Moreover, these configurations remain stable against axial perturbations while satisfying the dominant energy condition. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_21848 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Compact Stars Sourced by Perfect Fluid Dark Matter Halos Yue, Yuan Wang, Yong-Qiang General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena High Energy Physics - Theory Recent studies have shown that dark matter halos can support regular black holes or compact stars by assuming an anisotropic energy-momentum tensor. In this paper, we extend the analysis to the dark matter halo as an isotropic perfect fluid. By employing galactic dark matter profiles-specifically the Einasto and Dehnen models-as the mass-energy density source, we numerically solve the Einstein field equations and find a class of non-singular, horizonless compact star solutions. Moreover, these configurations remain stable against axial perturbations while satisfying the dominant energy condition. |
| title | Compact Stars Sourced by Perfect Fluid Dark Matter Halos |
| topic | General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena High Energy Physics - Theory |
| url | https://arxiv.org/abs/2601.21848 |