{
  "abstract": "We investigate the geodesic structure of a static, spherically symmetric black-hole in the background of a localized Astrophysical Dark Matter (ADM)-halo. The halo is modeled by a core-radius ($r_0$), regularized density profile that vanishes at the event horizon and exponential factor ensures the finite total halo mass. We solved the Einstein field equations numerically with equation of state with $p=wρ$ for stiff matter $w=1$ scenario. By analyzing the effective potential and its first and second derivatives, we evaluated the characteristic radius of the time-like innermost stable circular orbit ($r_{\\text{ISCO}}$) of massive particle in the vicinity of hairy black-hole. Our numerical analysis is consistent with the recently proposed theoretical upper bound $r_{\\text{ISCO}} \\le 6$ normalized to unit mass black-hole. We showed that the ADM-halo shifts $r_{\\text{ISCO}}$ inward with respect to the Schwarzschild (bald) scenario and the shifts are larger for larger halo core-radius. In particular our numerical finding enumerate $r_{\\text{ISCO}}$ are approximately $5.97$, $5.61$, $5.53$ for $r_0=2.0,10.0,20.0$ respectively. We believe that our analysis with ADM-halo model shed light on probing black-hole hair through high-energy astrophysical observables.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.24673",
  "author_total": 2,
  "authors": [
    {
      "name": "Anup S. Karekar"
    },
    {
      "name": "Siba Prasad Das"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1nr6934qjs8z9.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.24673",
  "fulltext_url": null,
  "id": "1nr6934qjs8z9",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.24673",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "gr-qc"
    ],
    [
      "openalex",
      "3103|Astrophysical Phenomena and Observations"
    ]
  ],
  "openalex": "W7223046837",
  "pdf_url": "https://arxiv.org/pdf/2610.24673",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1nr6934qjs8z9.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2610.24673",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.24673"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Radius of the innermost stable circular orbit of black-holes with localized Astrophysical Dark Matter halo",
  "title_text": "Radius of the innermost stable circular orbit of black-holes with localized Astrophysical Dark Matter halo",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/1nr6934qjs8z9",
  "venue": "arXiv",
  "versions": []
}