{
  "abstract": "Recently the James Webb Space Telescope (JWST) detected Hebe, a Population III (Pop III) candidate located ${\\sim}3$ kpc in projection from the massive $z=10.6$ galaxy GN-z11. This raises the question of whether Pop III star formation is expected in the vicinity of massive high-redshift galaxies or whether it would be prevented by early metal enrichment. We address this with a semi-analytic model of Pop III and metal-enriched star formation applied to a zoom-in N-body simulation of a highly overdense region surrounding a GN-z11 analog. The zoom-in region resolves the minihalos where the first stars form. We find that Pop III and metal-enriched star formation both occur earlier, and with a higher star formation rate density, than in a typical mean-density environment. The majority of Pop III star formation in minihalos ends by $z\\sim15$; however, we identify a distinct population of late-forming Pop III galaxies that form near the central galaxy. These systems have their star formation delayed due to ionizing feedback from the central GN-z11 analog and experience a Lyman-Werner (LW) intensity of ${\\sim}10$ - $100~J_{21}$, potentially leading to massive Pop III starbursts similar to Hebe. Interestingly, the abundance of these Pop III galaxies depends strongly on the baryon-dark matter streaming velocity, $v_{\\rm bc}$, because a higher streaming velocity allows halos to remain chemically pristine for longer. None of these late-forming Pop III sources occur for $v_{\\rm bc}=0$, while many form at high $v_{\\rm bc}$. Averaging over the expected distribution of streaming velocities, we predict that of order four GN-z11-like galaxies would need to be surveyed at $z\\sim11$ to expect to find one such source. We also note these environments may provide a natural formation site for heavy black hole seeds.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.35941",
  "author_total": 3,
  "authors": [
    {
      "name": "Eli Visbal"
    },
    {
      "name": "Greg L. Bryan"
    },
    {
      "name": "Ryan Hazlett"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bdhbvrdscgn5b.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.35941",
  "fulltext_url": null,
  "id": "bdhbvrdscgn5b",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.35941",
  "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.GA"
    ],
    [
      "openalex",
      "3103|Galaxies: Formation, Evolution, Phenomena"
    ]
  ],
  "openalex": "W7214955930",
  "pdf_url": "https://arxiv.org/pdf/2609.35941",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/bdhbvrdscgn5b.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:31Z",
      "native_id": "2609.35941",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.35941"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Massive Population III Galaxies Near a GN-z11 Analog: The Role of the Baryon-Dark Matter Streaming Velocity",
  "title_text": "Massive Population III Galaxies Near a GN-z11 Analog: The Role of the Baryon-Dark Matter Streaming Velocity",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:31Z",
  "url": "https://research.draconitic.com/paper/bdhbvrdscgn5b",
  "venue": "arXiv",
  "versions": []
}