Browsing Citations Only by Author "Young, Stuart"

Now showing items 1-5 of 5

    • Equatorial scattering and the structure of the broad-line region in Seyfert nuclei: Evidence for a rotating disc 

      Smith, James; Robinson, Andrew; Young, Stuart; Axon, David; Corbett, Elizabeth (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 ...

    • Highly polarized structures in the near-nuclear regions of Cygnus A: Intrinsic anisotropy within the cones? 

      Tadhunter, Clive; Sparks, William; Axon, David; Bergeron, Louis; Jackson, Neal; Packham, Christopher; Hough, James; Robinson, Andrew; Young, Stuart (Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2000-04)
      We present near-IR imaging polarimetry observations of the nucleus of Cygnus A, taken with the NICMOS camera of the HST at a wavelength of 2.0µm. These maps reveal a highly collimated region of polarized emission straddling ...

    • The rotating wind of the quasar PG 1700+518 

      Young, Stuart; Axon, David; Robinson, Andrew; Hough, James; Smith, James (Nature Publishing Group, 2008-02-27)
      It is now widely accepted that most galaxies undergo an active phase, during which a central super-massive black hole generates vast radiant luminosities through the gravitational accretion of gas1,2. Winds launched from ...

    • Seyferts on the edge: Polar scattering and orientation-dependent polarization in Seyfert 1 nuclei 

      Smith, James; Robinson, Andrew; Alexander, David; Young, Stuart; Axon, David; Corbett, Elizabeth (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 

      Smith, James; Young, Stuart; Robinson, Andrew; Corbett, Elizabeth; Giannuzo, Ester; Axon, David; Hough, James (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 ...