{
  "abstract": "We present the first measurement of the Hubble constant ($H_0$) from the quadruply-lensed quasar J1537$-$3010, which has optically-measured time delays at $\\sim2 \\%$ precision. We combine these delays with multi-band imaging data from the Hubble Space Telescope (HST) and model the system with two independent software and teams. We adopt a mass profile that is maximally degenerate with $H_0$ to fully incorporate the mass-sheet degeneracy in the error budget, with nuisance parameters constrained by spatially resolved stellar kinematics from the Multi Unit Spectroscopic Explorer (MUSE) and a line-of-sight (LoS) analysis using the Euclid Flagship simulation. The entire analysis is performed blindly to $H_0$, distances and mass density slope of the main deflector. After unblinding, we measure $H_0 = 75.5^{+9.3}_{-5.8}\\ {\\rm km\\,s^{-1}\\,Mpc^{-1}}$, corresponding to a $10\\%$ precision measurement from a single system. This precision is driven by conservative lens modeling assumptions including differences between lens modeling methods and the limited stellar kinematics constraints, from which we infer a total mass-sheet parameter $λ\\equiv(1-κ_{\\rm ext})λ_{\\rm int} = 0.89^{+0.11}_{-0.06}$ ($λ_{\\rm int}=0.89^{+0.09}_{-0.07}$) that is consistent with current results for elliptical galaxies ($λ\\approx 1$). Our lensing constraints, stellar kinematic measurements and LoS characterization will be included in subsequent population-level measurements of $H_0$. Moreover, our lens models combined with future near-infrared spectroscopy and imaging from the James Webb Space Telescope will further reduce the uncertainties on $H_0$ from J1537$-$3010 alone, bringing it closer to the few percents precision of the time delays.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.00179",
  "author_total": 24,
  "authors": [
    {
      "name": "A Galan"
    },
    {
      "name": "A.G Schweinfurth"
    },
    {
      "name": "S.H Suyu"
    },
    {
      "name": "D.P Johnson"
    },
    {
      "name": "A Chawla"
    },
    {
      "name": "D Sluse"
    },
    {
      "name": "G.V Kharchilava"
    },
    {
      "name": "E Buckley-Geer"
    },
    {
      "name": "H Lin"
    },
    {
      "name": "S Knabel"
    },
    {
      "name": "W Sheu"
    },
    {
      "name": "S Ertl"
    },
    {
      "name": "T Anguita"
    },
    {
      "name": "S Birrer"
    },
    {
      "name": "F Courbin"
    },
    {
      "name": "F Dux"
    },
    {
      "name": "M Millon"
    },
    {
      "name": "V Motta"
    },
    {
      "name": "S Schuldt"
    },
    {
      "name": "T Treu"
    },
    {
      "name": "D.M Williams"
    },
    {
      "name": "M Cappellari"
    },
    {
      "name": "K.C Wong"
    },
    {
      "name": "D Eckert"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/493ygzwpyz19a.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.00179",
  "fulltext_url": null,
  "id": "493ygzwpyz19a",
  "issns": [],
  "landing_url": "https://hal.science/hal-05741427v1",
  "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"
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      "arxiv",
      "astro-ph.GA"
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      "0.phys"
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      "openalex",
      "3103|Cosmology and Gravitation Theories"
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  "openalex": "W7206159728",
  "pdf_url": "https://arxiv.org/pdf/2609.00179",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/493ygzwpyz19a.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:29Z",
      "native_id": "hal-05741427",
      "source": "hal",
      "url": "https://hal.science/hal-05741427v1"
    },
    {
      "first_seen": "2026-10-30T12:18:00Z",
      "native_id": "2609.00179",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.00179"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    },
    {
      "field": "physics",
      "origin": "hal:0.phys",
      "subfield": "general"
    }
  ],
  "title": "TDCOSMO XXVIII. The Hubble constant from the quadruply lensed quasar J1537$-$3010 with precise time delays",
  "title_text": "TDCOSMO XXVIII. The Hubble constant from the quadruply lensed quasar J1537−3010 with precise time delays",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:00Z",
  "url": "https://research.draconitic.com/paper/493ygzwpyz19a",
  "venue": "HAL",
  "versions": []
}