{
  "abstract": "hyprfine is an analytic simulation of the sky-averaged 21-cm signal from $z=1100 - 6$ written using JAX and Python for native GPU capabilities. It models the average temperature of the 21-cm signal over cosmic time as a function of the $Λ$-CDM cosmology parameters and the astrophysics of the first stars and galaxies. As far as we are aware, the code is the first analytic GPU native simulation of the 21-cm signal. It runs in a fraction of a second, parallelises efficiently across a GPU and is differentiable through the Dark Ages ($z \\geq 35$). The code is publicly available at https://www.github.com/htjb/hyprfine.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.01865",
  "author_total": 1,
  "authors": [
    {
      "name": "Harry T. J. Bevins"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6qg662zns36s1.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.01865",
  "fulltext_url": null,
  "id": "6qg662zns36s1",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.01865",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.CO"
    ],
    [
      "arxiv",
      "astro-ph.IM"
    ],
    [
      "openalex",
      "3103|Radio Astronomy Observations and Technology"
    ]
  ],
  "openalex": "W7216201194",
  "pdf_url": "https://arxiv.org/pdf/2610.01865",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6qg662zns36s1.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:26:45Z",
      "native_id": "2610.01865",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.01865"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.IM",
      "subfield": "instrumentation-methods"
    }
  ],
  "title": "hyprfine: simulating the 21-cm signal from the Dark Ages through to the Epoch of Reionization on a GPU",
  "title_text": "hyprfine: simulating the 21-cm signal from the Dark Ages through to the Epoch of Reionization on a GPU",
  "type": "preprint",
  "updated_at": "2026-10-30T12:26:45Z",
  "url": "https://research.draconitic.com/paper/6qg662zns36s1",
  "venue": "arXiv",
  "versions": []
}