{
  "abstract": "We use the monopole and quadrupole power spectra of [\\ion{O}{2}]-emitting galaxies in the HETDEX Public Data Release 1 to constrain the growth of cosmic structures at $z\\le0.48$. We interpret the power spectra using a simulation-based model built from the Mucho-Uchuu-1G $N$-body simulation. The best-fit model reproduces the observed power spectra remarkably well up to $k_\\mathrm{max}=0.7~h~\\mathrm{Mpc}^{-1}$, and goodness-of-fit tests confirm that the HETDEX [\\ion{O}{2}] clustering is consistent with the \\textit{Planck} flat $Λ$CDM cosmology. We test the general relativity (GR) prediction for the linear growth index, $γ\\simeq 0.55$. When the Alcock-Paczyński parameters are held fixed at their fiducial values, we find consistency with the GR prediction, $γ=0.55\\pm 0.05$. And, when the AP parameters are allowed to vary, $γ=0.60\\pm 0.07$, which is consistent with both the GR prediction and the suppressed growth rate reported by \\citet{Nguyen_2023}. These results establish HETDEX [\\ion{O}{2}] galaxies as a competitive, independent low-redshift probe of the growth of structures and motivate future full cosmological inference.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.29591",
  "author_total": 12,
  "authors": [
    {
      "name": "Jeongin Moon"
    },
    {
      "name": "Eiichiro Komatsu"
    },
    {
      "name": "Robin Ciardullo"
    },
    {
      "name": "Daniel J. Farrow"
    },
    {
      "name": "Karl Gebhardt"
    },
    {
      "name": "Caryl Gronwall"
    },
    {
      "name": "Gary J. Hill"
    },
    {
      "name": "Donghui Jeong"
    },
    {
      "name": "Erin Mentuch Cooper"
    },
    {
      "name": "Shun Saito"
    },
    {
      "name": "Ariel G. Sánchez"
    },
    {
      "name": "Donald P. Schneider"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ahgm8rgjbcddy.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.29591",
  "fulltext_url": null,
  "id": "ahgm8rgjbcddy",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.29591",
  "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.GA"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7223223770",
  "pdf_url": "https://arxiv.org/pdf/2610.29591",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ahgm8rgjbcddy.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:19Z",
      "native_id": "2610.29591",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.29591"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "HETDEX [OII] galaxies at $z \\le 0.48$: Growth of structures from power spectrum multipoles",
  "title_text": "HETDEX [OII] galaxies at z ≤ 0.48: Growth of structures from power spectrum multipoles",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:19Z",
  "url": "https://research.draconitic.com/paper/ahgm8rgjbcddy",
  "venue": "arXiv",
  "versions": []
}