{
  "abstract": "Molecular outflows probe protostellar accretion and mass transfer from clump scales to forming stars. We present an ALMA study of CO (J=2-1) outflows toward 13 massive clumps from the SQUALO sample, spanning a broad evolutionary range and exhibiting clump-scale infall. We identify 51 high-velocity CO lobes associated with 31 outflow systems and derive their physical and dynamical properties assuming local thermodynamic equilibrium. Outflow inferred accretion rates are typically 10^{-5}-10^{-3} Msun/yr, consistent with active massive star formation. The maximum outflow velocity shows little dependence on candidate driving-core mass, indicating that it is not a reliable tracer of protostellar mass in clustered environments. Outflow momentum flux correlates positively with clump surface density, whereas accretion rate shows a tentative, statistically nonsignificant decrease with increasing virial parameter. Total outflow inferred accretion rate shows a tentative positive relation with clump-scale infall rate but remains systematically lower, suggesting that the detected outflows represent only part of the large-scale mass flux. The clump L/M ratio moderately anticorrelates with projected outflow length, although projection, observational limitations, and the embedded source population prevent a unique evolutionary interpretation. Together with the continuum derived fragmentation properties, our results show that compact cores embedded within infalling clumps drive the outflows. The tentative relation between clump-scale infall and protostellar accretion suggests a possible connection across these scales, although our observations do not directly trace mass transfer from filaments to individual protostars.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.09588",
  "author_total": 9,
  "authors": [
    {
      "name": "S. Mercimek"
    },
    {
      "name": "G. A. Fuller"
    },
    {
      "name": "A. Traficante"
    },
    {
      "name": "T. Pillai"
    },
    {
      "name": "A. Nucara"
    },
    {
      "name": "W. -A. Chen"
    },
    {
      "name": "D. Walker"
    },
    {
      "name": "L. Testi"
    },
    {
      "name": "M. Benedettini"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8aqdgmjxbf0mq.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.09588",
  "fulltext_url": null,
  "id": "8aqdgmjxbf0mq",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.09588",
  "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"
    ],
    [
      "arxiv",
      "astro-ph.SR"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.09588",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8aqdgmjxbf0mq.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T06:21:04Z",
      "native_id": "2611.09588",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.09588"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.SR",
      "subfield": "stellar"
    }
  ],
  "title": "SQUALO II: Probing Accretion Through CO Molecular Outflows in Massive Star-forming Clumps",
  "title_text": "SQUALO II: Probing Accretion Through CO Molecular Outflows in Massive Star-forming Clumps",
  "type": "preprint",
  "updated_at": "2026-11-10T06:21:04Z",
  "url": "https://research.draconitic.com/paper/8aqdgmjxbf0mq",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1093/mnras/stag2146",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}