Compact Stars Sourced by Perfect Fluid Dark Matter Halos

Yuan Yue; Yong-Qiang Wang

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arXiv · 2601.21848

Compact Stars Sourced by Perfect Fluid Dark Matter Halos

Yuan Yue·Yong-Qiang Wang

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Abstract

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.

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gr-qc astro-ph.HE hep-th

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Yuan Yue, Yong-Qiang Wang. 2026-01-29. Compact Stars Sourced by Perfect Fluid Dark Matter Halos. https://arxiv.org/abs/2601.21848

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