{
  "abstract": "We present galaxy luminosity functions and photometric predictions for the Vera C. Rubin Observatory Legacy Survey of Space and Time using the ASTRID cosmological hydrodynamical simulation. Galaxy magnitudes combine stellar population synthesis with a dust attenuation model whose optical depth scales with metal surface density. We calibrate the dust model at z = 0 using SDSS luminosity functions and test it at z = 0.5, 1.0, and 1.5 in rest frame B , V , R , I bands, finding good agreement with observations. We then construct LSST ready mock photometric catalogs over 0 ≤ z ≤ 2 in steps of Δ z = 0.1, containing about 378 million galaxies, including about 47 million above the LSST Year 10 coadded i -band limit. We provide apparent magnitude luminosity functions in ugrizy , best-fit Schechter parameters, and differential and cumulative galaxy counts as a function of survey depth.",
  "abstract_shown": true,
  "affiliations": [
    "Carnegie Mellon University",
    "University of Pittsburgh",
    "University of California Riverside"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Fatemeh Hafezianzadeh",
      "orcid": "0000-0002-9140-3950"
    },
    {
      "affs": [
        1
      ],
      "name": "Tianqing Zhang",
      "orcid": "0000-0002-5596-198X"
    },
    {
      "affs": [
        0
      ],
      "name": "Paul Rogozenski",
      "orcid": "0000-0002-1408-6904"
    },
    {
      "affs": [
        0
      ],
      "name": "Patrick Lachance",
      "orcid": "0009-0006-7511-0329"
    },
    {
      "affs": [
        0
      ],
      "name": "Yihao Zhou",
      "orcid": "0000-0002-8828-8461"
    },
    {
      "affs": [
        0
      ],
      "name": "Tiziana Di Matteo",
      "orcid": "0000-0002-6462-5734"
    },
    {
      "affs": [
        0
      ],
      "name": "Rupert A. C. Croft",
      "orcid": "0000-0003-0697-2583"
    },
    {
      "affs": [
        2
      ],
      "name": "Simeon Bird",
      "orcid": "0000-0001-5803-5490"
    },
    {
      "affs": [
        0
      ],
      "name": "Rachel Mandelbaum",
      "orcid": "0000-0003-2271-1527"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2rqggc1d8w6qj.bib",
  "cited_by": 0,
  "doi": "10.3847/1538-4357/aea57a",
  "fulltext_url": null,
  "id": "2rqggc1d8w6qj",
  "issns": [
    "0004-637X",
    "1538-4357"
  ],
  "landing_url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea57a",
  "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": "W7161120987",
  "pdf_url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea57a/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-08",
  "publisher": "American Astronomical Society",
  "ris": "https://research.draconitic.com/paper/2rqggc1d8w6qj.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:11Z",
      "native_id": "10.3847/1538-4357/aea57a",
      "source": "crossref",
      "url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea57a"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "openalex:3103|Galaxies: Formation, Evolution, Phenomena",
      "subfield": "galaxies"
    }
  ],
  "title": "The Galaxy Luminosity Functions in ASTRID: Predictions for LSST",
  "title_text": "The Galaxy Luminosity Functions in ASTRID: Predictions for LSST",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:11Z",
  "url": "https://research.draconitic.com/paper/2rqggc1d8w6qj",
  "venue": "The Astrophysical Journal",
  "versions": []
}