{
  "abstract": "We report redshifted cool gas toward the central star-forming region of the nearby starburst dwarf galaxy NGC 4214. Hubble Space Telescope/Cosmic Origins Spectrograph (COS) spectra show low-ionization absorbers redshifted relative to the systemic velocity, most clearly in S ii (Δ v = 19.8 ± 2.6 km s ⁻¹ ) and supported by Mg ii (Δ v = 30.3 ± 3.0 km s ⁻¹ ), while P ii remains tentative (Δ v = 7.5 ± 3.4 km s ⁻¹ ). The Keck/HIRES spectra also reveal a redshifted Ca ii absorption component (Δ v = 25.6 ± 1.5 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 be moving away from the observer and toward the background UV source in projection. A Very Large Array (VLA)–THINGS H i spectrum extracted at the COS position within one VLA beam also shows a redshifted neutral component at v hel = 329.2 ± 0.9 km s ⁻¹ , offset by 38.2 ± 1.3 km s ⁻¹ from systemic and by 27.6 ± 1.0 km s ⁻¹ from the dominant local H i component. The FAST H i 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 H i component, and the disturbed large-scale H i 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 noncircular disk motions cannot be fully excluded.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 14,
  "authors": [
    {
      "name": "Shulan Yan"
    },
    {
      "name": "淑澜 鄢"
    },
    {
      "name": "Taotao Fang"
    },
    {
      "name": "陶陶 方"
    },
    {
      "name": "Xiaochuan Jiang"
    },
    {
      "name": "小川 姜"
    },
    {
      "name": "Junfeng Wang"
    },
    {
      "name": "俊峰 王"
    },
    {
      "name": "Qingzheng Yu"
    },
    {
      "name": "清正 余"
    },
    {
      "name": "Chuanpeng Zhang"
    },
    {
      "name": "传朋 张"
    },
    {
      "name": "Ming Zhu"
    },
    {
      "name": "明 朱"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/29ahxn94ymk7y.bib",
  "cited_by": 0,
  "doi": "10.3847/2041-8213/aeb26b",
  "fulltext_url": null,
  "id": "29ahxn94ymk7y",
  "issns": [
    "2041-8213",
    "2041-8205"
  ],
  "landing_url": "https://iopscience.iop.org/article/10.3847/2041-8213/aeb26b",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "feed-journal",
      "astronomy/general"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://iopscience.iop.org/article/10.3847/2041-8213/aeb26b/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-03",
  "publisher": "American Astronomical Society",
  "ris": "https://research.draconitic.com/paper/29ahxn94ymk7y.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:20:16Z",
      "native_id": "10.3847/2041-8213/aeb26b",
      "source": "feed-iop",
      "url": "https://iopscience.iop.org/article/10.3847/2041-8213/aeb26b"
    },
    {
      "first_seen": "2026-11-04T00:22:44Z",
      "native_id": "10.3847/2041-8213/aeb26b",
      "source": "crossref",
      "url": "https://iopscience.iop.org/article/10.3847/2041-8213/aeb26b"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "journal-openalex:3103|Stellar, planetary, and galactic studies",
      "subfield": "stellar"
    }
  ],
  "title": "Redshifted Cool Gas in the Disturbed H i Disk of the Starburst Dwarf NGC 4214",
  "title_text": "Redshifted Cool Gas in the Disturbed H i Disk of the Starburst Dwarf NGC 4214",
  "type": "peer-reviewed",
  "updated_at": "2026-11-05T00:20:44Z",
  "url": "https://research.draconitic.com/paper/29ahxn94ymk7y",
  "venue": "The Astrophysical Journal Letters",
  "versions": [
    {
      "doi": "10.48550/arxiv.2610.13039",
      "pid": "5ctk28fnyydgm",
      "relation": "preprint",
      "title": "Redshifted Cool Gas in the Disturbed HI Disk of the Starburst Dwarf NGC 4214",
      "venue": "arXiv"
    }
  ]
}