{
  "id": "astro-ph/9910547",
  "version": "v1",
  "published": "1999-10-29T19:00:36.000Z",
  "updated": "1999-10-29T19:00:36.000Z",
  "title": "Resolved Spectroscopy of the Narrow-Line Region in NGC 1068. I. The Nature of the Continuum Emission",
  "authors": [
    "D. M. Crenshaw",
    "S. B. Kraemer"
  ],
  "comment": "32 pages, Latex, includes 11 figures (postscript), to appear in the Astrophysical Journal",
  "doi": "10.1086/308570",
  "categories": [
    "astro-ph"
  ],
  "abstract": "We present the first long-slit spectra of the Seyfert 2 galaxy NGC 1068 obtained by the Space Telescope Imaging Spectrograph (STIS); the spectra cover the wavelength range 1150 - 10,270 Angstroms at a spatial resolution of 0.05 - 0.1 arcsec and a spectral resolving power of 1000. In this first paper, we concentrate on the far-UV to near-IR continuum emission from the continuum ``hot spot'' and surrounding regions extending out to +/- 6 arcsec (+/-432 pc) at a position angle of 202 degrees In addition to the broad emission lines detected by spectropolarimetry, the hot spot shows the ``little blue bump'' in the 2000 - 4000 Ang. range, which is due to Fe II and Balmer continuum emission. The continuum shape of the hot spot is indistinguishable from that of NGC 4151 and other Seyfert 1 galaxies. Thus, the hot spot is reflected emission from the hidden nucleus, due to electron scattering (as opposed to wavelength-dependent dust scattering). The hot spot is ~0.3 arcsec in extent and accounts for 20% of the scattered light in the inner 500 pc. We are able to deconvolve the extended continuum emission in this region into two components: electron-scattered light from the hidden nucleus (which dominates in the UV) and stellar light (which dominates in the optical and near-IR). The scattered light is heavily concentrated towards the hot spot, is stronger in the northeast, and is enhanced in regions of strong narrow-line emission. The stellar component is more extended, concentrated southwest of the hot spot, dominated by an old (> 2 x 10 Gyr) stellar population, and includes a nuclear stellar cluster which is ~200 pc in extent.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-10-29T19:00:36.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "hot spot",
      "narrow-line region",
      "resolved spectroscopy",
      "hidden nucleus",
      "first long-slit spectra"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 32,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 520062
    }
  }
}