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Date and Time of the Query: 2018-09-19 T23:48:34 PDT
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For refcode 1995ApJ...440..565T:
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Copyright by American Astronomical Society. Reproduced by permission
1995ApJ...440..565T THE NATURE OF SEYFERT 2 GALAXIES WITH OBSCURED BROAD-LINE REGIONS. I. OBSERVATIONS HIEN D. TRAN UCO/Lick Observatory and Board of Studies in Astronomy and Astrophysics, University of CalIfornia, Santa Cruz Received 1994 June 16; accepted 1994 September 2 ABSTRACT We present high signal-to-noise ratio spectropolarimetric observations of 10 Seyfert 2 galaxies known to harbor obscured broad-line regions. Most of the data, covering the spectral range {lambda}{lambda}3200-7400 at moderate resolution, were obtained with the Kast double spectrograph in combination with the CCD polarimeter on the Shane 3 m telescope at Lick Observatory. Optical polarimetric imaging was also obtained with the same telescope for one object (Mrk 463), and narrowband imaging observations were made for four galaxies using the Nickel 1 m telescope. We describe methods of data reduction and those used to correct the polarimetry data for contamination from Galactic interstellar polarization as well as dilution from unpolarized starlight in the Seyfert host galaxies. From a comparison of various spectral properties, we found that the hidden Seyfert 1 galaxies do not appear to differ significantly from the normal Seyfert 1 galaxies, although the apparent lack of Fe II emission in the polarized flux spectra of most of them is intriguing. Subject headings: galaxies: nuclei - galaxies: Seyfert - polarization
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