{
  "abstract": "Gravitational-wave standard sirens provide a calibration-free measure of distances, offering important input on the long-standing tension between early- and late-Universe measurements of the Hubble constant ($H_0$). In the absence of an electromagnetic counterpart, the dark siren method can be employed to statistically correlate a gravitational wave event's localization with a galaxy catalog of potential hosts. We present a measurement of the Hubble constant using the DECam Local Volume Exploration Survey Data Release 3 and the fifth Gravitational-Wave Transient Catalog. Applying the dark siren method to a large, photometrically heterogeneous footprint required revised catalog-construction choices: a faint apparent-magnitude threshold ($m_r<20$) to control known photometric-redshift bias, a bright apparent-magnitude threshold ($m_r>15.5$) to exclude saturated sources, implementation of an evolving luminosity function parameterization, and de-biasing survey regions based on survey depth and photometric redshift precision. With these choices applied to DELVE, we obtain $H_0= 67.4^{+13.0}_{-11.2}\\ \\mathrm{km\\,s^{-1}\\,Mpc^{-1}}$ from dark sirens alone, and $H_0= 70.6^{+8.7}_{-7.0}\\ \\mathrm{km\\,s^{-1}\\,Mpc^{-1}}$ when combined with the bright siren GW170817. We test other galaxy catalog configuration choices, and find subdominant influence from photometric band choice and luminosity function parameterization on the final $H_0$ posterior. Our results demonstrate that extending the dark siren method to wider-area, non-uniform galaxy surveys is feasible and provides additional constraining power on $H_0$ relative to the spectral siren method, opening the door for analyses with forthcoming galaxy catalogs from LSST, Euclid, and Roman.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.25909",
  "author_total": 11,
  "authors": [
    {
      "name": "Sean Patrick MacBride"
    },
    {
      "name": "Isaac McMahon"
    },
    {
      "name": "Danny Laghi"
    },
    {
      "name": "David Sánchez-Cid"
    },
    {
      "name": "Felipe Andrade-Oliveira"
    },
    {
      "name": "Marcelle Soares-Santos"
    },
    {
      "name": "Maciej Bilicki"
    },
    {
      "name": "Sarah Ferraiuolo"
    },
    {
      "name": "Surhud More"
    },
    {
      "name": "Rachel Gray"
    },
    {
      "name": "Gergely Dálya"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/573w6y9324ak3.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.25909",
  "fulltext_url": null,
  "id": "573w6y9324ak3",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.25909",
  "language": "en",
  "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",
      "astro-ph.CO"
    ],
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.astr"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7223027263",
  "pdf_url": "https://arxiv.org/pdf/2610.25909",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/573w6y9324ak3.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2610.25909",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.25909"
    },
    {
      "first_seen": "2026-11-04T12:20:52Z",
      "native_id": "hal-05850142",
      "source": "hal",
      "url": "https://hal.science/hal-05850142v1"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "physics",
      "origin": "hal:0.phys",
      "subfield": "general"
    }
  ],
  "title": "Constraints on the Cosmic Expansion Rate Using the DECam Local Volume Exploration Survey and the Fifth Gravitational Wave Transient Catalog",
  "title_text": "Constraints on the Cosmic Expansion Rate Using the DECam Local Volume Exploration Survey and the Fifth Gravitational Wave Transient Catalog",
  "type": "preprint",
  "updated_at": "2026-11-05T12:20:12Z",
  "url": "https://research.draconitic.com/paper/573w6y9324ak3",
  "venue": "arXiv",
  "versions": []
}