{
  "id": "2411.13527",
  "version": "v1",
  "published": "2024-11-20T18:23:57.000Z",
  "updated": "2024-11-20T18:23:57.000Z",
  "title": "FAST H I 21 cm study of blueberry galaxies",
  "authors": [
    "Yogesh Chandola",
    "Chao-Wei Tsai",
    "D. J. Saikia",
    "Guodong Li",
    "Di Li",
    "Yin-Zhe Ma"
  ],
  "comment": "10 pages, 4 figures, 1 table, accepted for publication in the Astrophysical Journal Letters (ApJL), this is proof corrected version",
  "doi": "10.3847/2041-8213/ad901c",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "Green Peas (GPs) and blueberry galaxies (BBs) are thought to be local analogs ($z<$0.1) of high redshift Ly$\\alpha$ emitters. H I study of these can help us understand the star formation in the primordial Universe. In this Letter, we present the results of H I 21 cm study of 28 high specific star formation rate (sSFR $\\gtrsim$10$^{-8}$ yr$^{-1}$) BBs at $z\\lesssim$0.05 with the Five-hundred-meter Aperture Spherical radio Telescope. We report significant H I detection towards two BBs namely J1026+0426 and J1132+0809, and discuss possible H I contribution from neighboring galaxies. The median 3$\\sigma$ upper limit of $\\sim$2.0$\\times$10$^{8}$ M$_{\\odot}$ was obtained on H I mass for galaxies with nondetections. We find BBs tend to have lower H I-to-stellar mass ratio or gas fraction ($f_{\\rm HI}$) than expected from $f_{\\rm HI}$-sSFR and $f_{\\rm HI}$-$M_{\\ast}$ relations for main-sequence galaxies. The BBs also have a median 3$\\sigma$ upper limit on H I gas depletion time scale ($\\tau_{\\rm HI}$) $\\sim$0.5 Gyr, about 1 order of magnitude lower than $\\tau_{\\rm HI}$ for local main-sequence galaxies. We find a significantly low H I detection rate of 2/28 (7.1$^{+9.4}_{-4.6}$ \\%) towards these galaxies, which is similar to previous H I studies of low redshift GPs of high ionization parameter indicator, O32 $\\equiv$O[{\\sc iii}]$\\lambda$5007/O[{\\sc ii}]$\\lambda$3727 ratios $\\gtrsim$10.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-11-20T18:23:57.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "blueberry galaxies",
      "cm study",
      "high specific star formation rate",
      "high ionization parameter indicator",
      "five-hundred-meter aperture spherical radio telescope"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}