{
  "abstract": "Cosmology is a precision observational science, and large simulations are necessary components of many analyses. These simulations are computationally expensive and produce massive, complex datasets; sharing them widely -- to enable further explorations, comparison with observations, and communication with general audiences -- is crucial to realizing their scientific value. In this paper, we introduce the OpenCosmo project, which provides flexible access to, and analysis of, flagship cosmological simulations performed with HACC. A web-based portal (https://opencosmo.science) serves custom subsets -- halo catalogs, profiles, particles, galaxy catalogs, and lightcone catalogs and maps -- from simulations including the two-trillion-particle Frontier-E gravity-only run, Last Journey, Discovery, and a 64-member hydrodynamic suite. A companion Python toolkit analyzes the returned data and scales without modification from laptop-sized subsets to full simulations on supercomputers. OpenCosmo supports multiple levels of interaction, from browser-based search and download to programmatic and AI-agent-driven workflows, by integrating with existing high-performance computing and data infrastructure. Its architecture, built on Globus services, provides a scalable and adaptable framework that can be extended to other scientific domains seeking to couple data sharing with computational capability.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2607.16059",
  "author_total": 14,
  "authors": [
    {
      "name": "Patrick R. Wells"
    },
    {
      "name": "Michael Buehlmann"
    },
    {
      "name": "Patricia Larsen"
    },
    {
      "name": "William M. Hicks"
    },
    {
      "name": "Manpreet Dhillon"
    },
    {
      "name": "Idunnuoluwa A. Adeniji"
    },
    {
      "name": "Katrin Heitmann"
    },
    {
      "name": "Salman Habib"
    },
    {
      "name": "Benoit Côté"
    },
    {
      "name": "Thomas Uram"
    },
    {
      "name": "Gideon McFarland"
    },
    {
      "name": "Andrew Hearin"
    },
    {
      "name": "Ezar Shinabro"
    },
    {
      "name": "Michael E. Papka"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/62t8djjht8mes.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.16059",
  "fulltext_url": null,
  "id": "62t8djjht8mes",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.16059",
  "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.CO"
    ],
    [
      "arxiv",
      "astro-ph.IM"
    ],
    [
      "openalex",
      "3103|Galaxies: Formation, Evolution, Phenomena"
    ]
  ],
  "openalex": "W7169790928",
  "pdf_url": "https://arxiv.org/pdf/2607.16059",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-25",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/62t8djjht8mes.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:12Z",
      "native_id": "2607.16059",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.16059"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.IM",
      "subfield": "instrumentation-methods"
    }
  ],
  "title": "OpenCosmo: Community Portal and Analysis Framework for Flagship Cosmological Simulations",
  "title_text": "OpenCosmo: Community Portal and Analysis Framework for Flagship Cosmological Simulations",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:12Z",
  "url": "https://research.draconitic.com/paper/62t8djjht8mes",
  "venue": "arXiv",
  "versions": []
}