{
  "abstract": "Extremely Metal Poor (XMP) galaxies are the least chemically evolved objects in the local Universe and provide important constraints on galaxy formation in low-metallicity environments. This work investigates the ionised gas kinematics and star formation properties of XMP galaxies to identify disturbed or multi-component gas motions and explore their connection with star formation. We analyse long-slit spectroscopic observations of nine XMP galaxies obtained with the Intermediate Dispersion Spectrograph on the 2.5m Isaac Newton Telescope. The study uses the H$α$ emission line to trace ionised gas and emission-line ratios to derive gas-phase metallicities. The kinematic analysis reveals that some galaxies exhibit ordered rotation, with kinematic centres not always coincident with the luminous star-forming heads. Most systems show disturbed, asymmetric, or declining velocity profiles, while localized distortions near bright star-forming heads suggest that massive clumps influence the surrounding gas dynamics. We derive dynamical masses for the dominant clumps and investigate the mass--metallicity and size--metallicity relations. The clumps exhibit low metallicities consistent with the XMP regime and comparable to those observed in low-mass dwarf galaxies. Three galaxies show counter-rotating or kinematically decoupled ionised-gas components, indicating complex gas kinematics and possible external gas acquisition. Our sample is predominantly composed of isolated systems, with metal-poor star formation concentrated in compact head regions. These properties may reflect gas accretion through mergers, interactions, or the acquisition of metal-poor gas from the intergalactic medium and cosmic filaments. Internal processes such as outflows, gas mixing, recycling, and stochastic star formation may also contribute to the observed properties.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.27201",
  "author_total": 6,
  "authors": [
    {
      "name": "Jyoti Yadav"
    },
    {
      "name": "Casiana Muñoz Tuñón"
    },
    {
      "name": "Cecilia Farina"
    },
    {
      "name": "Alejandro Lumbreras-Calle"
    },
    {
      "name": "Jorge Sánchez Almeida"
    },
    {
      "name": "Bruce G. Elmegreen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c9p9etmzpen1b.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.27201",
  "fulltext_url": null,
  "id": "c9p9etmzpen1b",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.27201",
  "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.GA"
    ],
    [
      "openalex",
      "3103|Galaxies: Formation, Evolution, Phenomena"
    ]
  ],
  "openalex": "W7223088855",
  "pdf_url": "https://arxiv.org/pdf/2610.27201",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/c9p9etmzpen1b.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:04Z",
      "native_id": "2610.27201",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.27201"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Ionized Gas Kinematics and Star-forming Clumps in Extremely Metal-poor Galaxies",
  "title_text": "Ionized Gas Kinematics and Star-forming Clumps in Extremely Metal-poor Galaxies",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:04Z",
  "url": "https://research.draconitic.com/paper/c9p9etmzpen1b",
  "venue": "arXiv",
  "versions": []
}