{
  "abstract": "Time-delay cosmography offers a one-step, distance-ladder-independent route to the Hubble-Lemaitre constant, H_0. We present new cosmography-grade lens models of three quadruply imaged quasars based on JWST-NIRCam/F115W imaging (WFI2033-4723, HE0435-1223, PG1115+080). We use the STARRED modeling technique, introduced in our previous analysis of WFI2033-4723, to reconstruct the complex JWST-NIRCam Point Spread Function at high fidelity. We combine NIRCam-based lens models with improved external convergence estimates, published time delays, and aperture-integrated stellar velocity dispersions from JWST NIRSpec to infer H_0. The analysis was carried out blindly for HE0435-1223 and PG1115+080, while it was not blind for WFI2033-4723, as we build upon the previous published model. For comparison with previous HST-based work, we limit our analysis to the case of no internal mass-sheet degeneracy ($λ_{\\rm int}=1$). We quantify the impact of improved imaging, single-aperture kinematics, and environment measurements on central values and uncertainties. Within flat $Λ$CDM, assuming a uniform prior on $Ω_{\\rm m}$, we find H_0 = 71.8$_{-7.0}^{+9.2}$ $λ_{\\rm int}$ km s$^{-1}$ Mpc$^{-1}$ for PG1115+080, 74.2$_{-4.2}^{+4.2}$ $λ_{\\rm int}$ km s$^{-1}$ Mpc$^{-1}$ for HE0435-1223, and 73.4$_{-4.4}^{+3.4}$ $λ_{\\rm int}$ km s$^{-1}$ Mpc$^{-1}$ for WFI2033-4723. Combining the three lenses yields H_0 = 73.5$_{-2.8}^{+2.7}$ $λ_{\\rm int}$ km s$^{-1}$ Mpc$^{-1}$, consistent with HST-based results (73.6$_{-2.6}^{+2.6}$ $λ_{\\rm int}$ km s$^{-1}$ Mpc$^{-1}$), but with reduced scatter between the three systems. These models will be incorporated in the TDCOSMO-2026 milestone paper with free $λ_{\\rm int}$ in a hierarchical fashion. We close by outlining how 16 forthcoming JWST NIRCam targets will further tighten uncertainties toward percent-level precision on H_0.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.27566",
  "author_total": 16,
  "authors": [
    {
      "name": "D. M. Williams"
    },
    {
      "name": "T. Treu"
    },
    {
      "name": "D. P. Johnson"
    },
    {
      "name": "P. Mozumdar"
    },
    {
      "name": "S. Knabel"
    },
    {
      "name": "S. Birrer"
    },
    {
      "name": "C. D. Fassnacht"
    },
    {
      "name": "A. Galan"
    },
    {
      "name": "A. J. Shajib"
    },
    {
      "name": "K. C. Wong"
    },
    {
      "name": "M. Cappellari"
    },
    {
      "name": "F. Courbin"
    },
    {
      "name": "T. Morishita"
    },
    {
      "name": "V. Motta"
    },
    {
      "name": "D. Sluse"
    },
    {
      "name": "M. Stiavelli"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/743cp269r3ph3.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.27566",
  "fulltext_url": null,
  "id": "743cp269r3ph3",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.27566",
  "language": "en",
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.CO"
    ],
    [
      "arxiv",
      "astro-ph.GA"
    ],
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.astr"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7204855039",
  "pdf_url": "https://arxiv.org/pdf/2608.27566",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-27",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/743cp269r3ph3.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:22Z",
      "native_id": "2608.27566",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.27566"
    },
    {
      "first_seen": "2026-10-30T12:17:29Z",
      "native_id": "hal-05741422",
      "source": "hal",
      "url": "https://hal.science/hal-05741422v1"
    }
  ],
  "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. XXVII. JWST-based Lens Models and H$_0$ Measurement of WFI2033, HE0435, and PG1115",
  "title_text": "TDCOSMO. XXVII. JWST-based Lens Models and H_0 Measurement of WFI2033, HE0435, and PG1115",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:29Z",
  "url": "https://research.draconitic.com/paper/743cp269r3ph3",
  "venue": "arXiv",
  "versions": []
}