{
  "abstract": "Ultralight scalar fields nonminimally coupled to curvature can endow rotating black holes with stationary hair and alter nearby orbits. Using recently constructed hairy black-hole spacetimes, we model the transition to plunge of an extreme-mass-ratio inspiral. For scalar masses $μM=0.01$ and $0.1$ and dimensionless curvature coupling $ζ=10^{-3},10^{-4}$, we find $\\mathcal{O}(10)$ rad of gravitational-wave dephasing relative to general relativity over $\\mathcal{O}(10^3)$ orbits. A multimode Fisher forecast at $μM=0.2$, where neighbouring hair solutions permit a numerical $μ$-derivative, suggests that $ζ$ and $μ$ could be measured to precisions of $\\simeq0.2\\%$ and $0.6$--$1.1\\%$, respectively, for a source with signal-to-noise ratio of about 80 in LISA.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.28037",
  "author_total": 3,
  "authors": [
    {
      "name": "Leif Lui"
    },
    {
      "name": "Adrian Ka-Wai Chung"
    },
    {
      "name": "Alejandro Torres-Orjuela"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9m3mtg6ftdygz.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.28037",
  "fulltext_url": null,
  "id": "9m3mtg6ftdygz",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.28037",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.HE"
    ],
    [
      "arxiv",
      "gr-qc"
    ],
    [
      "openalex",
      "3103|Pulsars and Gravitational Waves Research"
    ]
  ],
  "openalex": "W7204750426",
  "pdf_url": "https://arxiv.org/pdf/2608.28037",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9m3mtg6ftdygz.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:22Z",
      "native_id": "2608.28037",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.28037"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    },
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Devoured by a Hairy Gargantua: Probing Massive Scalar Charges with Non-minimal Curvature Coupling with Extreme-Mass-Ratio Inspirals",
  "title_text": "Devoured by a Hairy Gargantua: Probing Massive Scalar Charges with Non-minimal Curvature Coupling with Extreme-Mass-Ratio Inspirals",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:22Z",
  "url": "https://research.draconitic.com/paper/9m3mtg6ftdygz",
  "venue": "arXiv",
  "versions": []
}