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Equatorial scattering and the structure of the broad-line region in Seyfert nuclei: Evidence for a rotating disc
(Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2005-05)
We present detailed scattering models confirming that distinctive variations in polarization across the broad Halpha line, which are observed in a significant fraction of Seyfert 1 galaxies, can be understood in terms of ...
Seyferts on the edge: Polar scattering and orientation-dependent polarization in Seyfert 1 nuclei
(Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2004-05)
We have identified 12 Seyfert 1 galaxies that exhibit optical polarization spectra similar to those of Seyfert 2 galaxies in which polarized broad-lines are detected. We present new spectropolarimetric observations of 3 ...
A spectropolarimetric atlas of Seyfert 1 galaxies
(Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2002-09-27)
We present optical spectropolarimetry of the nuclei of 36 Seyfert 1 galaxies, obtained with the William Herschel and the Anglo–Australian Telescopes from 1996 to 1999. In 20 of these, the optical emission from the active ...
The nature of the optical: Radio correlations for powerful radio galaxies
(Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 1998-08)
The nature of the optical–radio correlations for powerful radio galaxies is investigated using spectroscopic observations of a complete sample of southern 2Jy radio sources. In line with previous work, we find that significant ...
Jet driven motions in the Narrow Line region of NGC1068
(Springer Netherlands: Astrophysics and Space Science, 1997-03)
We have obtained HST FOC f/48 long-slit spectroscopy of the inner 4" of the Narrow Line Region of NGC 1068 between 3500-5400A with a spectral resolution of 1.78A/pixel. At a spatial scale of 0.0287" per pixel these data ...