40 citations · 43 across the 6 of their papers we have counts for
Showing 2000Show all
3 papers · 1 filter
astro-ph2000
Damped Lyman alpha systems at z=0.68 and z=1.15 towards HE 1122-1649 and HE 0515-4414
A. de la Varga, D. Reimers, D. Tytler +2
Detailed analysis of the spectral lines from two low redshift damped Lyman alpha absorbers (DLA) confirms that they are a heterogeneous population. Both systems have low metal abun…
astro-ph2000
Quasar environments at 0.5 < z < 0.8
M. Wold, M. Lacy, P. B. Lilje +1
Over the past few years, we have been collecting data with the Nordic Optical Telescope (NOT) on the galaxy environments around active galactic nuclei (AGN). Here we present some r…
astro-ph2000
Studies of the high luminosity quasar, PDS 456
J. Reeves, P. O'Brien, S. Vaughan +5
X-ray and multi-wavelength observations of the most luminous known local (z<0.3) AGN, the recently discovered radio-quiet quasar PDS 456, are presented. The spectral energy distrib…