{
  "abstract": "Feedback from massive stars regulates the formation of next-generation stars and planets and thus shapes the evolution of galaxies, yet observational evidence capable of determining which mechanism dominates the feedback process has long been lacking. Here,we present a large-scale HI survey toward Orion A$.$ With an unprecedented sensitivity and superior resolution, FAST (Five-hundred-meter Aperture Spherical radio Telescope) reveals a well-defined heart-shaped expanding HI bubble, enshrouding the well-known \"Veil\" bubble of ionized gas. The photoionization-driven and wind-driven gas expands at 10.9 and 13.8 kilometers per second, respectively, with a kinetic energy ratio of 1:2 assuming a spherical symmetry and a uniform HI-to-H2 ratio. This first direct comparison within a single bubble shows that radiation does not dominate the feedback process as predicted by classical theories; instead, stellar winds contribute a comparable share of the injected kinetic energy.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Science Advances 12, eaec0787 (2026)",
  "arxiv": "2610.16557",
  "author_total": 30,
  "authors": [
    {
      "name": "Chong Li"
    },
    {
      "name": "Rouyu Li"
    },
    {
      "name": "Keping Qiu"
    },
    {
      "name": "Marko Krco"
    },
    {
      "name": "Di Li"
    },
    {
      "name": "Hongchi Wang"
    },
    {
      "name": "Xin Lyu"
    },
    {
      "name": "Yan Duan"
    },
    {
      "name": "Min Fang"
    },
    {
      "name": "Xuepeng Chen"
    },
    {
      "name": "Lile Wang"
    },
    {
      "name": "Haoran Feng"
    },
    {
      "name": "Shuinai Zhang"
    },
    {
      "name": "Miaomiao Zhang"
    },
    {
      "name": "Shaobo Zhang"
    },
    {
      "name": "Yue Cao"
    },
    {
      "name": "Yao Wang"
    },
    {
      "name": "Yan Gong"
    },
    {
      "name": "Fujun Du"
    },
    {
      "name": "Zhiwei Chen"
    },
    {
      "name": "Yang Su"
    },
    {
      "name": "Yuehui Ma"
    },
    {
      "name": "Yuchen Xing"
    },
    {
      "name": "Yinghui Zheng"
    },
    {
      "name": "Tianwei Zhang"
    },
    {
      "name": "Shu Niu"
    },
    {
      "name": "Chenrui Li"
    },
    {
      "name": "Jiawei Liu"
    },
    {
      "name": "Zhijun Zhang"
    },
    {
      "name": "Yulian Guo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9wbqwa69rqvk6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.16557",
  "fulltext_url": null,
  "id": "9wbqwa69rqvk6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.16557",
  "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": null,
  "pdf_url": "https://arxiv.org/pdf/2610.16557",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9wbqwa69rqvk6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:11Z",
      "native_id": "2610.16557",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.16557"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Identifying the principal mechanism of star formation feedback",
  "title_text": "Identifying the principal mechanism of star formation feedback",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:11Z",
  "url": "https://research.draconitic.com/paper/9wbqwa69rqvk6",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1126/sciadv.aec0787",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}