{
  "id": "1712.07250",
  "version": "v1",
  "published": "2017-12-19T22:47:49.000Z",
  "updated": "2017-12-19T22:47:49.000Z",
  "title": "Luminous and obscured quasars and their host galaxies",
  "authors": [
    "Agnese Del Moro",
    "David M. Alexander",
    "Franz E. Bauer",
    "Emanuele Daddi",
    "Dale D. Kocevski",
    "Flora Stanley",
    "Daniel H. McIntosh"
  ],
  "comment": "8 pages, 3 figures. Proceeding of \"Quasars at all cosmic epochs\", Padova April 2017. Accepted for publication in Front. Astron. Space Sci.; M. D'Onofrio, D. Dultzin, A. Del Olmo, P. Marziani, eds",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "The most heavily-obscured, luminous quasars might represent a specific phase of the evolution of actively accreting supermassive black holes and their host galaxies, possibly related to mergers. We investigated a sample of the most luminous quasars at $z\\approx 1-3$ in the GOODS fields, selected in the mid-infrared band through detailed spectral energy distribution (SED) decomposition. The vast majority of these quasars (~80%) are obscured in the X-ray band and ~30% of them to such an extent, that they are undetected in some of the deepest (2 and 4 Ms) Chandra X-ray data. Although no clear relation is found between the star-formation rate of the host galaxies and the X-ray obscuration, we find a higher incidence of heavily-obscured quasars in disturbed/merging galaxies compared to the unobscured ones, thus possibly representing an earlier stage of evolution, after which the system is relaxing and becoming unobscured.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-12-19T22:47:49.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "host galaxies",
      "obscured quasars",
      "accreting supermassive black holes",
      "detailed spectral energy distribution",
      "luminous quasars"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}