{
  "id": "1505.02410",
  "version": "v1",
  "published": "2015-05-10T17:29:00.000Z",
  "updated": "2015-05-10T17:29:00.000Z",
  "title": "Galaxy formation at z > 3 revealed by narrow-band selected [OIII] emission line galaxies",
  "authors": [
    "Tomoko L. Suzuki",
    "Tadayuki Kodama",
    "Ken-ichi Tadaki",
    "Masao Hayashi",
    "Yusei Koyama",
    "Ichi Tanaka",
    "Yosuke Minowa",
    "Rhythm Shimakawa",
    "Moegi Yamamoto"
  ],
  "comment": "11 pages, 8 figures, 1 table, accepted for publication in ApJ",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We present the physical properties of [OIII] emission line galaxies at z>3 as the tracers of active galaxies at 1Gyr before the peak epoch at z~2. We have performed deep narrow-band imaging surveys in the Subaru/XMM-Newton Deep Survey Field with MOIRCS on the Subaru Telescope and have constructed coherent samples of 34 [OIII] emitters at z=3.2 and 3.6, as well as 107 H$\\alpha$ emitters at z=2.2 and 2.5. We investigate their basic physical quantities, such as stellar masses, star formation rates (SFRs), and sizes using the publicly available multi-wavelength data and high resolution images by the Hubble Space Telescope. The stellar masses and SFRs show a clear correlation known as the \"main sequence\" of star-forming galaxies. It is found that the location of the main sequence of the [OIII] emitters at z=3.2 and 3.6 is almost identical to that of the H$\\alpha$ emitters at z=2.2 and 2.5. Also, we investigate their mass-size relation and find that the relation does not change between the two epochs. When we assume that the star-forming galaxies at z=3.2 grow simply along the same main sequence down to z=2.2, galaxies with $M_* = 10^{9}$-$10^{11} M_{\\odot}$ increase their stellar masses significantly by a factor of 10-2. They climb up the main sequence, and their star formation rates also increase a lot as their stellar masses grow. This indicates that star formation activities of galaxies are accelerated from z>3 towards the peak epoch of galaxy formation at z~2.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-05-10T17:29:00.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "emission line galaxies",
      "galaxy formation",
      "main sequence",
      "stellar masses",
      "deep narrow-band imaging surveys"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015arXiv150502410S"
    }
  }
}