4 papers · 1 filter
Discovery of a z=0.808 damped Lyman-alpha system candidate in a UV selected quasar spectrum
V. Le Brun, M. Viton, B. Milliard
We present the observation of a new intermediate redshift damped Lyman-alpha absorption system candidate, discovered in the course of a spectroscopic follow-up for identifying the…
Detection of candidate primordial galaxies at z>4
V. Le Brun, J. Boulesteix, A. Mazure +2
We report on the detection of four primordial galaxies candidates in the redshift range 4.55 < z < 4.76, as well as 4 other candidates in the range 4.12 < z < 4.32. These galaxies…
Ly-alpha absorbers at z<1 : HST-CFHT imaging and spectroscopy in the field of 3C 286
V. Le Brun, J. Bergeron
We present further observational results on our Lya-only absorber identification project at low and intermediate redshifts. We combine CFHT/MOS imaging and spectroscopic observatio…
A HST Spectroscopic study of QSOs with intermediate redshift damped Lyman-alpha systems
Patrick Boisse, Vincent Le Brun, Jacqueline Bergeron +1
We present HST spectra for a sample of six QSOs with intermediate redshift (z_a < 1) damped Ly-alpha systems. These observations aim at measuring the HI column density and detect m…