{
  "id": "1312.0684",
  "version": "v1",
  "published": "2013-12-03T02:15:05.000Z",
  "updated": "2013-12-03T02:15:05.000Z",
  "title": "ALMA will determine the spectroscopic redshift z>8 with FIR [O III] emission lines",
  "authors": [
    "Akio K. Inoue",
    "Ikkoh Shimizu",
    "Yoichi Tamura",
    "Hiroshi Matsuo",
    "Takashi Okamoto",
    "Naoki Yoshida"
  ],
  "comment": "ApJL in press",
  "journal": "2014, ApJ, 780, L18",
  "doi": "10.1088/2041-8205/780/2/L18",
  "categories": [
    "astro-ph.GA",
    "astro-ph.CO"
  ],
  "abstract": "We investigate the potential use of nebular emission lines in the rest-frame far-infrared (FIR) for determining spectroscopic redshift of z>8 galaxies with the Atacama Large Millimeter/sub-millimeter Array (ALMA). After making a line emissivity model as a function of metallicity, especially for the [O III] 88 micron line which is likely to be the strongest FIR line from H II regions, we predict the line fluxes from high-z galaxies based on a cosmological hydrodynamics simulation of galaxy formation. Since the metallicity of galaxies reaches at ~0.2 Zsun even at z>8 in our simulation, we expect the [O III] 88 micron line as strong as 1.3 mJy for 27 AB objects, which is detectable at a high significance by <1 hour integration with ALMA. Therefore, the [O III] 88 micron line would be the best tool to confirm the spectroscopic redshifts beyond z=8.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2013-12-03T02:15:05.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "spectroscopic redshift",
      "micron line",
      "atacama large millimeter/sub-millimeter array",
      "line emissivity model",
      "nebular emission lines"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "The Astrophysical Journal",
      "year": 2014,
      "month": "Jan",
      "volume": 780,
      "number": 2
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1267173,
      "adsabs": "2014ApJ...780L..18I"
    }
  }
}