10 papers
A vestige low metallicity gas shell surrounding the radio galaxy 0943-242 at z=2.92
L. Binette, J. D. Kurk, M. Villar-Martin +1
Observations are presented showing the doublet CIV 1550 absorption lines superimposed on the CIV emission in the radio galaxy 0943-242. Within the errors, the redshift of the absor…
UV rest frame spectroscopy of four high redshift (z>2) active galaxies
M. Villar-Martin, R. A. E. Fosbury, L. Binette +2
We present UV spectra of a small sample of high redshift active galaxies: the hyperluminous, gravitationally lensed system SMM J02399-0136 (z=2.8) and three powerful radio galaxies…
The NV/CIV ratio in high redshift radio galaxies
R. A. E. Fosbury, J. Vernet, M. Villar-Martin +3
Deep Keck spectropolarimetry has been obtained of a sample of powerful radio galaxies with . In addition to a clear 2200Ådust scattering/extinction signature and…
The structure and composition of high redshift radio galaxies
R A E Fosbury, J Vernet, M Villar-Martin +4
Keck spectropolarimetry, giving spectral coverage from Ly- to beyond CIII], and HST imaging of a sample of powerful radio galaxies with \ has been obtained. These data…
Optical continuum structure of Cygnus A
R. A. E. Fosbury, J. Vernet, M. Villar-Martin +4
As a prerequisite for interpreting new observations of the most distant radio galaxies, we make an optical study of the closest powerful radio source, Cygnus A. Using Keck imaging-…
PKS 1932-464: a jet-cloud interaction in a radio galaxy?
M. Villar-Martin, C. N. Tadhunter, R. Morganti +3
We present optical and radio images, and long-slit spectra of the radio galaxy PKS 1932-464 (z=0.230). Our main goal is to determine whether the observed properties of the extended…