{
  "id": "1505.05273",
  "version": "v1",
  "published": "2015-05-20T08:09:04.000Z",
  "updated": "2015-05-20T08:09:04.000Z",
  "title": "Herschel Survey of the Palomar-Green QSOs at Low Redshift",
  "authors": [
    "Andreea O. Petric",
    "Luis C. Ho",
    "Nicolas J. M. Flagey",
    "Nicholas Z. Scoville"
  ],
  "comment": "accepted for publication in ApJS",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We investigate the global cold dust properties of 85 nearby (z < 0.5) QSOs, chosen from the Palomar-Green sample of optically luminous quasars. We determine their infrared spectral energy distributions and estimate their rest-frame luminosities by combining Herschel data from 70 to 500 microns with near-infrared and mid-infrared measurements from the Two Micron All Sky Survey (2MASS) and the Wide-Field Infrared Survey Explorer (WISE). In most sources the far-infrared (FIR) emission can be attributed to thermally heated dust. Single temperature modified black body fits to the FIR photometry give an average dust temperature for the sample of 33~K, with a standard deviation of 8~K, and an average dust mass of 7E6 Solar Masses with a standard deviation of 9E6 Solar Masses. Estimates of star-formation that are based on the FIR continuum emission correlate with those based on the 11.3 microns PAH feature, however, the star-formation rates estimated from the FIR continuum are higher than those estimated from the 11.3 microns PAH emission. We attribute this result to a variety of factors including the possible destruction of the PAHs and that, in some sources, a fraction of the FIR originates from dust heated by the active galactic nucleus and by old stars.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-05-20T08:09:04.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "herschel survey",
      "palomar-green qsos",
      "low redshift",
      "temperature modified black body fits",
      "standard deviation"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}