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2026-01-21 19:27 UTC · gr-qc · gr-qc, astro-ph.HE, hep-th

Compact Stars Sourced by Dark Matter Halos and Their Frozen States

Yuan Yue, Yong-Qiang Wang

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.
arXiv abstractPDF

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