Browsing Research publications by Author "Ward, M.J."

Now showing items 1-13 of 13

    • Evidence for an Obscured Broadline Region in the Early Type Radio Galaxy IC5063 

      Inglis, M.D.; Brindle, C.; Hough, J.; Young, S.; Axon, D.J.; Bailey, J.; Ward, M.J. (1993)
      We report the detection of strong, broad Hα emission seen in polarized flux from the early-type radio galaxy IC 5063. This suggests that the galaxy has a broad-line region which is obscured from our direct view, with the ...

    • Near-infrared and millimetre polarimetry of CEN A 

      Packham, C.; Hough, J.; Young, S.; Chrysostomou, A.; Bailey, J.; Axon, D.J.; Ward, M.J. (1996)
      We present near-infrared polarization images of the nuclear region of CenA, and millimetre polarimetry of the nucleus. In the near-infrared the polarization vectors mainly lie along the dust lane, with the polarization ...

    • Near-IR spectropolarimetry and modeling of NGC 1068 

      Young, S.; Hough, J.; Axon, D.J.; Bailey, J.; Ward, M.J. (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 ...

    • Near-IR Spectropolarimetry of NGC 1088 

      Young, S.; Hough, J.; Bailey, J.; Axon, D.J.; Ward, M.J. (Astronomical Society of the Pacific, 1994)
      The current unified model of Seyfert galaxies, as proposed by Antonucci and Miller (1985), has most, if not all, Seyfert 2 galaxies hosting a Seyfert 1 type nucleus in their cores. The broad lines from the type 1 nucleus ...

    • The obscured BLR in the radio galaxy 3C 234 

      Young, S.; Axon, D.J.; Hough, J.; Fabian, A.C.; Ward, M.J. (1998)
      We present spectropolarimetric observations of the radio galaxy 3C 234 at optical and, for the first time, near-IR wavelengths. In agreement with previous observations we detect broad Hα in total and polarized flux, ...

    • An optical and near-infrared polarization survey of Seyfert and broad-line radio galaxies. 1 : statistical properties 

      Brindle, C.; Hough, J.; Bailey, J.; Axon, D.J.; Ward, M.J.; Sparks, W.; McLean, I. (1990)
      The present broad-band and near-IR flux density and polarization measurements of a sample of 71 Seyfert galaxies and three broad-line radio galaxies confirms earlier indications that the polarization of Seyferts is generally ...

    • An optical and near-infrared polarization survey of Seyfert and broad-line radio galaxies. 2 : the wavelength dependence of polarization 

      Brindle, C.; Hough, J.; Bailey, J.; Axon, D.J.; Ward, M.J.; Sparks, W.; McLean, I. (1990)
      We discuss the wavelength dependence (0.44-2.2 micron) of polarization of the sample of 71 Seyfert and three broad-line radio galaxies presented in Paper I. For four galaxies, 3A 0557-353, Fairall 51, IC 4329A and NGC 3753, ...

    • Optical and near-infrared spectropolarimetry of the infrared-luminous galaxy IRAS 23060+0505 

      Young, S.; Hough, J.; Axon, D.J.; Ward, M.J.; Bailey, J. (1996)
      We present optical and near-IR spectropolarimetry of the type 2 infrared-luminous galaxy IRAS 23060+0505, which clearly shows both broad Hα and Paalpha in polarized flux. The full widths at half maximum (FWHM) of these ...

    • The polarization of NGC 1068 

      Bailey, J.; Axon, D.J.; Hough, J.; Ward, M.J.; McLean, I.; Heathcote, S.R. (1988)
      Broad-band polarimetry of NGC 1068 over the wavelength range 0.36 - 4.8 μm is presented, together with high-resolution spectropolarimetry of the Hβ, [O III] and Hα, [N II] regions of the spectrum. The authors recognize ...

    • Scattered broad optical lines in the polarized flux spectrum of the FR II galaxy 3C 321 

      Young, S.; Hough, J.; Efstathiou, A.; Wills, B.; Axon, D.J.; Bailey, J.; Ward, M.J. (1996)
      The authors present optical/infrared broad-band filter polarimetry and optical spectropolarimetry of the powerful FR II galaxy 3C 321. The latter observations reveal a scattered broad component to the Hα emission line, ...

    • Spatially Resolved Spectropolarimetry of NGC 1068 

      Inglis, M.D.; Young, S.; Hough, J.; Axon, D.J.; Bailey, J.; Ward, M.J. (Astronomical Society of the Pacific, 1994)
      A turning point in the study of AGN was the discovery of broad hydrogen lines seen in polarized light in the nucleus of NGC 1068 (Antonucci and Miller 1985). A model was developed whereby the scatterers responsible for ...

    • Spectropolarimetry of the ultraluminous infrared galaxy IRAS 110548-1131 

      Young, S.; Hough, J.; Bailey, J.; Axon, D.J.; Ward, M.J. (1993)
      From spectropolarimetric observations of the galaxy IRAS 110548-1131 we report very strong, broad H-alpha emission (FWHM 7600 km/s) in the polarized flux spectrum. This suggests that IRAS 110548-1131 has an obscured ...

    • The variable infrared source near HH100 

      Axon, D.J.; Allen, D.; Bailey, J.; Hough, J.; Ward, M.J.; Jameson, R.F. (1982)
      Photometric observations are presented which confirm the high variability, of up to 2.5 mag at K, of the IR source associated with the Herbig-Haro object HH100, and it is suggested that such a large variation must be a ...