{
  "id": "astro-ph/0612737",
  "version": "v1",
  "published": "2006-12-27T00:07:48.000Z",
  "updated": "2006-12-27T00:07:48.000Z",
  "title": "Arp102B: An ADAF and a Torus ?",
  "authors": [
    "Ranga-Ram Chary"
  ],
  "comment": "4 pages, 3 figures, Conference proceedings to appear in \"The Central Engine of Active Galactic Nuclei\", ed. L. C. Ho and J.-M. Wang (San Francisco: ASP)",
  "categories": [
    "astro-ph"
  ],
  "abstract": "Arp102B is a nearby radio galaxy which displays the presence of double peaked Balmer emission lines. Sub-arcsec Keck mid-infrared imaging and Spitzer spectroscopy reveal a spatially compact mid-infrared source which displays tentative evidence for variability. The F$_{\\nu}\\propto\\nu^{-1.2}$ spectral energy distribution is suggestive of an advection dominated accretion flow. The absence of dust features over the 5-40 micron range make it unlikely that thermal dust emission dominates the mid-infrared luminosity. We also detect the presence of molecular hydrogen in emission which is asymmetrically redshifted by ~500-1000 km/s from the systemic velocity of the galaxy. Since the forbidden, low ionization lines in this galaxy are at the systemic velocity, we suggest that the molecular hydrogen emission arises from a rotating molecular gas structure surrounding the nuclear black hole at a distance of ~1 pc.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2006-12-27T00:07:48.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "peaked balmer emission lines",
      "molecular gas structure surrounding",
      "systemic velocity",
      "molecular hydrogen emission arises",
      "thermal dust emission dominates"
    ],
    "tags": [
      "conference paper"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 735582
    }
  }
}