{
  "annotation_id": "b82f39b7-eb6d-4a87-a943-50d9cebd1692",
  "date_created": "2026-02-17T05:53:24.050000Z",
  "date_modified": "2026-02-17T05:53:24.050000Z",
  "file_hash": "9d945b8cd5553df7f26648519029888c4924d16d8c96f01d5c610fabfe82ed0c",
  "private": false,
  "record": {
    "abstract": "We present [O$_{\\rm \\,III}$] 88$\\mu$m observations towards four ${\\it Herschel}$-selected dusty star-forming galaxies (DSFGs; log$_{10}$ $\\mu$L$_{\\rm IR}$/L$_{\\odot}$ = 13.5 - 14 at $z = 2.9 - 4$) using the Atacama Compact Array (ACA) in Bands 9 and 10. We detect [O$_{\\rm \\,III}$] emission in all four targets at \u003e3$\\sigma$, finding line luminosity ratios ($L_{\\rm [O_{\\rm \\,III}]}$ / L$_{\\rm IR}$ = 10$^{-4.2}$ to 10$^{-3}$) similar to local spiral galaxies, and an order of magnitude lower when compared with local dwarf galaxies as well as high-redshift Lyman-break galaxies. Using the short-wavelength capabilities of the ACA, these observations bridge the populations of galaxies with [O$_{\\rm \\,III}$] emission at low redshift from space missions and at high redshift from ground-based studies. The difference in [O$_{\\rm \\,III}$] emission between these DSFGs and other high-redshift galaxies reflects their more evolved stellar populations (\u003e 10 Myr), larger dust reservoirs (M$_{\\rm dust}$ $\\sim$ 10$^{9 - 11}$ M$_{\\odot}$), metal-rich interstellar medium ($Z \\sim 0.5 - 2$ Z$_{\\odot}$), and likely weaker ionization radiation fields. Ancillary [C$_{\\rm \\,II}$] emission on two targets provide $L_{[{\\rm O}_{\\rm \\,III}]} / L_{[{\\rm C}_{\\rm \\,II}]}$ ratios at 0.3 - 0.9, suggesting that ionized gas represents a smaller fraction of the total gas reservoir in DSFGs, consistent with theoretical models of DSFGs as transitional systems between gas-rich, turbulent disks and more evolved, gas-poor galaxies. Expanding samples of DSFGs with [O$_{\\rm \\,III}$] emission will be key to place this heterogeneous, poorly-understood galactic phase in its astrophysical context.",
    "arxiv_id": "2601.09780",
    "authors": [
      "T. J. L. C. Bakx",
      "Hiddo S. B. Algera",
      "Prachi Prajapati",
      "George Bendo",
      "Stefano Berta",
      "Laura Bonavera",
      "Pierre Cox",
      "Joaquin Gonz\u00e1lez-Nuevo",
      "Masato Hagimoto",
      "Kevin Harrington",
      "Matthew Lehnert",
      "Stephen Serjeant",
      "Pasquale Temi",
      "Paul van der Werf",
      "Chentao Yang",
      "Gianfranco De Zotti"
    ],
    "categories": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "Breathless BEARS: [O$_{\\rm \\,III}$] 88$\\mu$m Emission of Dusty Star-Forming Galaxies at $z = 3-4$",
    "url": "https://arxiv.org/abs/2601.09780",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d0612e2b-8eb9-43b3-ad0d-30fc180c258f",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}