{
  "abstract": "We present the cross-calibration of the eROSITA and XMM telescopes, using galaxy clusters detected by redMaPPer from the first three years of Dark Energy Survey observations (DESY3RM). We use the X-ray: Generate and Analyse (Xga) Python module to measure eROSITA properties, and validate our methodology using a deep pointed eROSITA CAL-PV observation of A3158, and a sample of 119 clusters from the expanded HIgh FLux Galaxy Cluster Sample (eeHiFLUGCS). Next, we construct a sample of DESY3RM clusters matched to XMM observations analysed by the XMM Cluster Survey (XCS), and to clusters in the first release of the eROSITA All-Sky Survey (eRASS1). This produced a sample of 114 DESY3RM clusters with both XMM and eROSITA detections. Our resulting X-ray temperatures determined from eROSITA were compared to eRASS1 catalogue values, showing consistency between the two analyses. Comparisons between XMM and eROSITA temperatures reveal a systematic offset, with XMM temperatures 28 ± 7% higher on average. Finally, we fit LX, soft-λRM and TX-λRM scaling relations for both eROSITA and XMM using the same cluster sample, finding minimal differences in the LX, soft-λRM relation but a clear normalisation offset in the TX-λRM relation, particularly for the highest richness systems. This study will enable future work combining eROSITA and XMM observatories for DESY3RM clusters.",
  "abstract_shown": true,
  "affiliations": [
    "University of Sussex Department of Physics and Astronomy, , Brighton, BN1 9QH ,",
    "Universität Innsbruck, Institut für Astro- und Teilchenphysik , Technikerstr. 25/8, 6020 Innsbruck ,",
    "Center for Space Science and Technology, University of Maryland , Baltimore County (UMBC), Baltimore, MD 21250 ,",
    "High Energy Astrophysics Science Archive Research Center (HEASARC) , NASA/GSFC, Greenbelt, MD 20771 ,",
    "Center for Research and Exploration in Space Science and Technology (CRESST II) , NASA/GSFC, Greenbelt, MD 20771 ,",
    "Wits Centre for Astrophysics, School of Physics, University of the Witwatersrand , Private Bag 3, 2050, Johannesburg ,",
    "School of Mathematics, Statistics, and Computer Science, University of KwaZulu-Natal , Westville Campus, Durban 4041 ,",
    "Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange , Bd de l’Observatoire, CS 34229, 06304 Nice cedex 4 ,",
    "School of Physics, HH Wills Physics Laboratory, University of Bristol , Tyndall Avenue, Bristol, BS8 1TL ,",
    "Michigan State University , Physics & Astronomy Department, East Lansing, Michigan ,"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 12,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "J E Pilling"
    },
    {
      "affs": [
        2,
        3,
        4
      ],
      "name": "D J Turner",
      "orcid": "0000-0001-9658-1396"
    },
    {
      "affs": [
        0
      ],
      "name": "P A Giles",
      "orcid": "0000-0003-4937-8453"
    },
    {
      "affs": [
        0
      ],
      "name": "A K Romer"
    },
    {
      "affs": [
        0
      ],
      "name": "R Wilkinson"
    },
    {
      "affs": [
        0
      ],
      "name": "P J Rooney"
    },
    {
      "affs": [
        5,
        6
      ],
      "name": "M Hilton",
      "orcid": "0000-0002-8490-8117"
    },
    {
      "affs": [
        7
      ],
      "name": "S Bhargava"
    },
    {
      "affs": [
        8
      ],
      "name": "J Hall"
    },
    {
      "affs": [
        9
      ],
      "name": "R Wang",
      "orcid": "0000-0003-2102-8646"
    },
    {
      "affs": [
        0
      ],
      "name": "A Abdulghafour"
    },
    {
      "affs": [
        8
      ],
      "name": "B J Maughan",
      "orcid": "0000-0003-0791-9098"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c2zwhkqk9qset.bib",
  "cited_by": 0,
  "doi": "10.1093/mnras/stag1968",
  "fulltext_url": null,
  "id": "c2zwhkqk9qset",
  "issns": [
    "0035-8711",
    "1365-2966"
  ],
  "landing_url": "https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stag1968/8931750",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3103|Galaxies: Formation, Evolution, Phenomena"
    ]
  ],
  "openalex": "W7222753335",
  "pdf_url": "https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stag1968/72051940/stag1968.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-16",
  "publisher": "Oxford University Press (OUP)",
  "ris": "https://research.draconitic.com/paper/c2zwhkqk9qset.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:17Z",
      "native_id": "10.1093/mnras/stag1968",
      "source": "crossref",
      "url": "https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stag1968/8931750"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "openalex:3103|Galaxies: Formation, Evolution, Phenomena",
      "subfield": "galaxies"
    }
  ],
  "title": "The XMM Cluster Survey: Cross-Calibration of eROSITA and XMM using Dark Energy Survey Y3 Galaxy Clusters",
  "title_text": "The XMM Cluster Survey: Cross-Calibration of eROSITA and XMM using Dark Energy Survey Y3 Galaxy Clusters",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:17Z",
  "url": "https://research.draconitic.com/paper/c2zwhkqk9qset",
  "venue": "Monthly Notices of the Royal Astronomical Society",
  "versions": []
}