University of Hertfordshire

From the same journal

From the same journal

By the same authors

Near-IR spectropolarimetry and modeling of NGC 1068

Research output: Contribution to journalArticle

  • S. Young
  • J. Hough
  • D.J. Axon
  • J. Bailey
  • M.J. Ward
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Original languageEnglish
Pages (from-to)513-527
JournalMonthly Notices of the Royal Astronomical Society
Publication statusPublished - 1995


We present new spectropolarimetric data for NGC 1068, including, for the first time, coverage in the near-IR. Using these, and other previously published data, we develop a scattering model for NGC 1068, using NGC 5548 for the underlying Seyfert 1 continuum spectrum and M31 for the stellar contribution. Although electron scattering is the dominant process, if NGC 5548 is typical of Seyfert 1s in the near-IR then electron scattering alone cannot be soley responsible for the observed polarization of NGC 1068 at these wavelengths, and a contribution from dichroic absorption of the radiation from the IR-emitting regions of the active nucleus, through the postulated torus, is required. The extinction in this region is A_V>=45 mag, although we note that the extinction to broad-line region and nucleus is much higher.


Original article can be found via: Copyright Royal Astronomical Society [Full text of this article is not available in the UHRA]

ID: 153445