{
  "abstract": "We report redshifted cool gas toward the central star-forming region of the nearby starburst dwarf galaxy NGC 4214. HST/COS spectra show low-ionization absorbers redshifted relative to the systemic velocity, most clearly in SII ($Δv=19.8\\pm2.6\\ {\\rm km\\,s^{-1}}$) and supported by MgII ($Δv=30.3\\pm3.0\\ {\\rm km\\,s^{-1}}$), while PII remains tentative ($Δv=7.5\\pm3.4\\ {\\rm km\\,s^{-1}}$). The Keck/HIRES spectra also reveal a redshifted CaII absorption component ($Δv=25.6\\pm1.5\\ {\\rm km\\,s^{-1}}$). Because the absorption is detected against the central UV or optical continuum, the gas must lie in the foreground of the star-forming region and is moving away from the observer and toward the background UV source in projection. A VLA--THINGS HI spectrum extracted at the COS position within one VLA beam also shows a redshifted neutral component at $v_{\\rm hel}=329.2\\pm0.9\\ {\\rm km\\ s^{-1}}$, offset by $38.2\\pm1.3\\ {\\rm km\\ s^{-1}}$ from systemic and by $27.6\\pm1.0\\ {\\rm km\\ s^{-1}}$ from the dominant local HI component. The FAST HI mapping further reveals an extended, kinematically disturbed neutral disk, with residual structures relative to a warped-disk model. Together, the redshifted UV absorption, the redshifted HI component, and the disturbed large-scale HI velocity field show that the central anomalous cool gas is observed in a galaxy with a disturbed extended neutral disk. This geometry suggests that the redshifted cool gas may trace inflow or recycled fallback toward the central region, although warped-disk or non-circular disk motions cannot be fully excluded.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: The Astrophysical Journal Letters, 2026",
  "arxiv": "2610.13039",
  "author_total": 7,
  "authors": [
    {
      "name": "Shulan Yan"
    },
    {
      "name": "Taotao Fang"
    },
    {
      "name": "Xiaochuan Jiang"
    },
    {
      "name": "Junfeng Wang"
    },
    {
      "name": "Qingzheng Yu"
    },
    {
      "name": "Chuanpeng Zhang"
    },
    {
      "name": "Ming Zhu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5ctk28fnyydgm.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.13039",
  "fulltext_url": null,
  "id": "5ctk28fnyydgm",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.13039",
  "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.GA"
    ],
    [
      "openalex",
      "3103|Galaxies: Formation, Evolution, Phenomena"
    ]
  ],
  "openalex": "W7221543347",
  "pdf_url": "https://arxiv.org/pdf/2610.13039",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5ctk28fnyydgm.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:28:36Z",
      "native_id": "2610.13039",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.13039"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Redshifted Cool Gas in the Disturbed HI Disk of the Starburst Dwarf NGC 4214",
  "title_text": "Redshifted Cool Gas in the Disturbed HI Disk of the Starburst Dwarf NGC 4214",
  "type": "preprint",
  "updated_at": "2026-11-09T00:20:15Z",
  "url": "https://research.draconitic.com/paper/5ctk28fnyydgm",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.3847/2041-8213/aeb26b",
      "pid": "29ahxn94ymk7y",
      "relation": "published-as",
      "title": "Redshifted Cool Gas in the Disturbed H i Disk of the Starburst Dwarf NGC 4214",
      "venue": "The Astrophysical Journal Letters"
    }
  ]
}