{
  "abstract": "Aims. Type Ia supernovae (SNe Ia) are crucial tools for measuring the accelerating expansion of the Universe, comprising thousands of SNe across multiple telescopes. Accurate measurements of cosmological parameters with SNe Ia require a robust understanding and cross-calibration of the telescopes and filters. A previous cross-calibration effort, ‘Fragilistic’, provided 25 photometric systems, but offered no public code or ability to add new surveys. We provide a publicly available open-source cross-calibration solution with an eye to the future. Methods. By jointly using the Pan-STARRs (PS1) and Gaia all-sky telescopes, we characterised the measured filters from 11 photometric systems – including CfA, PS1, Foundation, DES, CSP, SDSS, and SNLS – using published observations of field stars. For the first time, we derived uncertainties on effective filter transmissions and modified filters to match the data. With the addition of direct observations of DA white dwarfs, we simultaneously cross-calibrated our zero points across photometric systems and trained a new SALT model to propagate to cosmology. Results. With improved uncertainties from DA WDs, we find improvements to the calibration systematic uncertainty of ×1.5 for the Pantheon+ sample, with a new systematic photometric uncertainty of σ w (phot) = 0.013 for Flat w CDM, and modest improvements to that of the DES5YR analysis. We find good agreement with previous calibration and show that even these small calibration changes can be amplified by up to a factor of six in the inferred SN Ia distances; this is driven by calibration sensitivity in the colour–luminosity relations and SALT training. Initial results indicate that these changes cause d μ /d z = 0.041 ± 0.009 across our redshift range. These may have a potentially larger impact in w0/wa space and on inferences regarding evolving dark energy.",
  "abstract_shown": true,
  "affiliations": [
    "Université Claude Bernard Lyon 1, CNRS, IP2I Lyon/IN2P3, IMR 5822",
    "IP2I Lyon - Institut de Physique des 2 Infinis de Lyon (Campus LyonTech-la Doua Bâtiment Paul DIRAC 4 Rue Enrico Fermi 69622 Villeurbanne Cedex - France)",
    "The Oskar Klein Centre, Department of Physics, Stockholm University",
    "Department of Physics & Astronomy, University College London",
    "Institute of Astronomy and Kavli Institute for Cosmology",
    "Departments of Astronomy and Physics, Boston University",
    "Department of Physics, Duke University",
    "Department of Physics, University of Oxford, Denys Wilkinson Building",
    "School of Physics and Astronomy & Institute for Gravitational Wave Astronomy, University of Birmingham",
    "Institute for Astronomy, University of Hawai’i",
    "Department of Physics, Lancaster University",
    "Aix Marseille Université, CNRS/IN2P3, CPPM",
    "CPPM - Centre de Physique des Particules de Marseille (163, avenue de Luminy - Case 902 - 13288 Marseille cedex 09 - France)",
    "School of Physics and Astronomy, University of Southampton",
    "Institut d’Estudis Espacials de Catalunya (IEEC)",
    "Institute of Space Sciences (ICE-CSIC), Campus UAB",
    "Université Clermont Auvergne, CNRS/IN2P3, LPCA",
    "LPC - Laboratoire de Physique de Clermont (Campus Universitaire des Cézeaux, 4 Avenue Blaise Pascal, TSA 60026, CS 6002, 63178 Aubière Cedex - France)",
    "Sorbonne Université, CNRS/IN2P3, LPNHE",
    "LPNHE (UMR_7585) - Laboratoire de Physique Nucléaire et de Hautes Énergies (Barre 12-22, 1er étage 4 Place Jussieu 75252 Paris Cedex 05 - France)"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 24,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "B Popovic",
      "orcid": "0000-0002-8012-6978"
    },
    {
      "affs": [
        2
      ],
      "name": "W. D. Kenworthy",
      "orcid": "0000-0002-5153-5983"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "M Ginolin",
      "orcid": "0009-0004-5311-9301"
    },
    {
      "affs": [
        2
      ],
      "name": "A. Goobar",
      "orcid": "0000-0002-4163-4996"
    },
    {
      "affs": [
        3
      ],
      "name": "P Shah",
      "orcid": "0000-0002-8000-6642"
    },
    {
      "affs": [
        4
      ],
      "name": "Benjamin M. Boyd",
      "orcid": "0000-0002-0622-1117"
    },
    {
      "affs": [
        4
      ],
      "name": "Aaron Do",
      "orcid": "0000-0003-3429-7845"
    },
    {
      "affs": [
        5
      ],
      "name": "Dillon Brout",
      "orcid": "0000-0001-5201-8374"
    },
    {
      "affs": [
        6
      ],
      "name": "D. Scolnic"
    },
    {
      "affs": [
        7
      ],
      "name": "M. Vincenzi",
      "orcid": "0000-0001-8788-1688"
    },
    {
      "affs": [
        8
      ],
      "name": "Suhail Dhawan",
      "orcid": "0000-0002-2376-6979"
    },
    {
      "affs": [
        9
      ],
      "name": "D. O. Jones",
      "orcid": "0000-0002-6230-0151"
    },
    {
      "affs": [
        10
      ],
      "name": "M. Smith",
      "orcid": "0000-0002-3321-1432"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "M. Rigault",
      "orcid": "0000-0002-8121-2560"
    },
    {
      "affs": [
        11,
        12
      ],
      "name": "B. Racine",
      "orcid": "0000-0001-8861-3052"
    },
    {
      "affs": [
        4
      ],
      "name": "Erin E. Hayes",
      "orcid": "0000-0003-3847-0780"
    },
    {
      "affs": [
        6
      ],
      "name": "Rebecca C. Chen",
      "orcid": "0000-0003-3917-0966"
    },
    {
      "affs": [
        13
      ],
      "name": "P. Wiseman",
      "orcid": "0000-0002-3073-1512"
    },
    {
      "affs": [
        14,
        15
      ],
      "name": "Lluís Galbany",
      "orcid": "0000-0002-1296-6887"
    },
    {
      "affs": [
        4
      ],
      "name": "Matthew Grayling",
      "orcid": "0000-0002-6741-983X"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Leander Lacroix",
      "orcid": "0000-0003-0629-5746"
    },
    {
      "affs": [
        16,
        17
      ],
      "name": "C Barjou-Delayre",
      "orcid": "0009-0000-8510-8982"
    },
    {
      "affs": [
        18,
        19
      ],
      "name": "D. Kuhn",
      "orcid": "0009-0005-8110-397X"
    },
    {
      "affs": [
        2
      ],
      "name": "Cameron Lemon",
      "orcid": "0000-0003-2456-9317"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/074dfw53s8jss.bib",
  "cited_by": 14,
  "doi": "10.1051/0004-6361/202555963",
  "fulltext_url": null,
  "id": "074dfw53s8jss",
  "issns": [
    "0004-6361",
    "1432-0746"
  ],
  "landing_url": "https://doi.org/10.1051/0004-6361/202555963",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W4411332239",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-06-19",
  "publisher": "EDP Sciences",
  "ris": "https://research.draconitic.com/paper/074dfw53s8jss.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:18Z",
      "native_id": "W4411332239",
      "source": "openalex",
      "url": "https://doi.org/10.1051/0004-6361/202555963"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "openalex:3103|Cosmology and Gravitation Theories",
      "subfield": "cosmology"
    }
  ],
  "title": "A reassessment of the Pantheon+ and DES 5YR calibration uncertainties: Dovekie",
  "title_text": "A reassessment of the Pantheon+ and DES 5YR calibration uncertainties: Dovekie",
  "type": "peer-reviewed",
  "updated_at": "2026-11-05T13:20:42Z",
  "url": "https://research.draconitic.com/paper/074dfw53s8jss",
  "venue": "Astronomy and Astrophysics",
  "versions": []
}