Browsing Meeting minutes, announcements and publications from RIT Colleges by Author "Tadhunter, Clive"

Now showing items 1-8 of 8

    • The evidence for jet-cloud interactions in a sample of high/intermediate-redshift radio galaxies 

      Solorzano-Inarrea, Carmen; Tadhunter, Clive; Axon, David (Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2001-05)
      We present detailed long-slit spectroscopic observations of a sample of four powerful radio galaxies, with intermediate/high redshifts (0.47 < z < 0.81). The observations cover the rest-wavelength range 2600 °A- 6600 °A, ...

    • 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 large scale distribution of warm ionized gas around nearby radio galaxies with jet-cloud interactions 

      Tadhunter, Clive; Villar-Martin, Montse; Morganti, Raffaella; Bland-Hawthorn, Joss; Axon, David (Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2000-06)
      Deep, narrow-band Halpha observations taken with the TAURUS Tunable Filter (TTF) on the 4.2m WHT telescope are presented for two nearby radio galaxies with strong jet-cloud interactions. Although the brightest emission ...

    • The nature of the optical: Radio correlations for powerful radio galaxies 

      Tadhunter, Clive; Morganti, Raffaella; Robinson, Andrew; Dickson, Robert; Villar-Martin, Montse; Fosbury, Robert (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 ...

    • PKS2250-41 and the role of jet-cloud interactions in powerful radio galaxies (full paper) 

      Villar-Martin, Montse; Tadhunter, Clive; Morganti, Raffaella; Axon, David; Koekemoer, Anton (Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 1999-02)
      We present high resolution, long-slit spectra of the jet-cloud interaction in the powerful southern radio galaxy PKS2250-41.We have resolved the emission lines into two main kinematic components: a broad component (FWHM ...

    • Spectroscopy of the near-nuclear regions of Cygnus A: Estimating the mass of the supermassive black hole 

      Tadhunter, Clive; Marconi, Alessandro; Axon, David; Wills, Karen; Robinson, TG; Jackson, Neal (Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2003-07)
      We use a combination of high spatial resolution optical and near-IR spectroscopic data to make a detailed study of the kinematics of the NLR gas in the near-nuclear regions of the powerful, FRII radio galaxy Cygnus A ...

    • Testing the photoionization models of powerful radio galaxies: Mixed line-emitting media in 3C 321 

      Robinson, TG; Tadhunter, Clive; Axon, David (Blackwell Publishing: Monthly Notices of the Royal Astronomical Society, 2000-10)
      The photoionization models for the narrow emission line regions of powerful radio galaxies have yet to be tested in depth. To this end, we present high-quality long-slit spectroscopy of the powerful double-nucleus radio ...