{
  "abstract": "We present the reduction and source catalogs for the \\textit{COSMOS High-$z$ ALMA-MIRI Population Survey} (CHAMPS), the largest Atacama Large (Sub)Millimeter Array (ALMA) blank field survey to date at 0.2\\,deg$^2$. With observing frequency centered at $250\\, $GHz ($1.2\\,$mm) and bandwidth of 7.5 GHz, CHAMPS covers the JWST/NIRCam+MIRI footprint in the COSMOS field, taking advantage of the rich, multiwavelength ancillary datasets in COSMOS ranging from X-ray to radio. The majority of the CHAMPS survey (90$\\%$) has depths at or below 200 $μ$Jy beam$^{-1}$ and with an average RMS of 146 $μ$Jy beam$^{-1}$. The reduced CHAMPS mosaic has a beam size of $θ_{\\rm res} = 1.1'' \\times 1.1''$. CHAMPS identifies sources via two detection methods, a blind search for high-SNR sources, and a prior-based search involving MIRI detections to identify faint sources. The blind search yields a total of 595 sources down to an SNR $\\ge4.5σ$ while the prior catalog yields a total of 3162 source down to an SNR $\\ge3σ$, leading to a full sample of 3355 unique objects detected across both catalogs. We identify a unique population of 385 SNR $\\ge5σ$ sources across the two catalogs; after excluding 9 likely spurious edge detections we define a robust science sample of 376 sources above $\\ge5σ$. These sources have a median redshift of $\\langle z_{1.2 \\text{ mm}}\\rangle = 2.54^{+0.89}_{-1.69}$ based on optical/near-IR/mid-IR photometric redshifts and high-quality spectroscopic redshifts, and hold a median stellar mass of $\\langle\\log (\\rm M_\\star/M_\\odot)\\rangle = 10.79^{+0.42}_{-3.08}$. We have further identified 68/376 ($\\sim18\\%$) sources as candidate AGN through X-ray, UV-optical, infrared and radio selection techniques.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.36076",
  "author_total": 55,
  "authors": [
    {
      "name": "Felix Martinez III"
    },
    {
      "name": "Jeyhan S. Karaltepe"
    },
    {
      "name": "Andreas L. Faisst"
    },
    {
      "name": "Arianna S. Long"
    },
    {
      "name": "Jorge A. Zavala"
    },
    {
      "name": "Caitlin M. Casey"
    },
    {
      "name": "Jed McKinney"
    },
    {
      "name": "Ezequiel Treister"
    },
    {
      "name": "Maximilien Franco"
    },
    {
      "name": "Sune Toft"
    },
    {
      "name": "Manuel Aravena"
    },
    {
      "name": "John D. Silverman"
    },
    {
      "name": "Hollis B. Akins"
    },
    {
      "name": "Hiddo S. B. Algera"
    },
    {
      "name": "Jacqueline Antwi-Danso"
    },
    {
      "name": "Andrew J. Battisti"
    },
    {
      "name": "Yingjie Cheng"
    },
    {
      "name": "Olivia R. Cooper"
    },
    {
      "name": "Nicole E. Drakos"
    },
    {
      "name": "Carter Flayhart"
    },
    {
      "name": "Fabrizio Gentile"
    },
    {
      "name": "Steven Gillman"
    },
    {
      "name": "Ghassem Gozaliasl"
    },
    {
      "name": "Santosh Harish"
    },
    {
      "name": "Simon Hempel-Costello"
    },
    {
      "name": "Michaela Hirschmann"
    },
    {
      "name": "Olivier Ilbert"
    },
    {
      "name": "Bingcheng Jin"
    },
    {
      "name": "Shuowen Jin"
    },
    {
      "name": "Koki Kakiichi"
    },
    {
      "name": "Thresa Kelly"
    },
    {
      "name": "Zihao Li"
    },
    {
      "name": "Daizhong Liu"
    },
    {
      "name": "Lun-Jun Liu"
    },
    {
      "name": "Sinclaire M. Manning"
    },
    {
      "name": "Henry Joy McCracken"
    },
    {
      "name": "Romain A. Meyer"
    },
    {
      "name": "Louise Paquereau"
    },
    {
      "name": "Maria Pudoka"
    },
    {
      "name": "Jason Rhodes"
    },
    {
      "name": "Brant E. Robertson"
    },
    {
      "name": "Giulia Rodighiero"
    },
    {
      "name": "Rasha M. Samir"
    },
    {
      "name": "David B. Sanders"
    },
    {
      "name": "Marko Shuntov"
    },
    {
      "name": "Margherita Talia"
    },
    {
      "name": "Mattia Vaccari"
    },
    {
      "name": "Francesco Valentino"
    },
    {
      "name": "Aswin P. Vijayan"
    },
    {
      "name": "Feige Wang"
    },
    {
      "name": "Wuji Wang"
    },
    {
      "name": "Can Xu"
    },
    {
      "name": "Jinyi Yang"
    },
    {
      "name": "Yongda Zhu"
    },
    {
      "name": "Siwei Zou"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2vazq8k2shrbg.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.36076",
  "fulltext_url": null,
  "id": "2vazq8k2shrbg",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.36076",
  "language": null,
  "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.GA"
    ],
    [
      "openalex",
      "3103|Galaxies: Formation, Evolution, Phenomena"
    ]
  ],
  "openalex": "W7214948233",
  "pdf_url": "https://arxiv.org/pdf/2609.36076",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/2vazq8k2shrbg.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:31Z",
      "native_id": "2609.36076",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.36076"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "CHAMPS: Data Reduction and Detection of ~3300 Dusty Galaxies at 1.2 mm",
  "title_text": "CHAMPS: Data Reduction and Detection of ~3300 Dusty Galaxies at 1.2 mm",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:31Z",
  "url": "https://research.draconitic.com/paper/2vazq8k2shrbg",
  "venue": "arXiv",
  "versions": []
}