Compact Stars Sourced by Perfect Fluid Dark Matter Halos

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Authors: Yuan Yue, Yong-Qiang Wang
Cited by: 0

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.

Fields of Study & Subjects

Pulsars and Gravitational Waves Research Astrophysical Phenomena and Observations Cosmology and Gravitation Theories

Publication details

Journal / source
arXiv (Cornell University)
Publication date
29 January 2026
Document type
Preprint