4 papers
FUSE Observations towards HD 34078 Detection of highly excited H2 and HD
Franck Le Petit, Patrick Boisse, Guillaume Pineau des Forets +4
We present FUSE observations of the extincted O9.5 star, HD 34078. The 19 first levels of H2 are detected (i.e. from J=0 to v=1, J=5) as well as HD in its two first levels. The exc…
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…
The nature of intermediate-redshift damped Ly-alpha absorbers
V. Le Brun, J. Bergeron, P. Boisse +1
We present HST/WFPC2 high-spatial resolution images in the R and B bands of the close environment of the sightlines to seven quasars which spectra show either a damped Ly-alpha abs…
Observationnal constraints on the nature of the low redshift Lyman-alpha absorbers
V. Le Brun, J. Bergeron, P. Boisse
We present results from a spectroscopic and imaging survey of galaxies in the fields of quasars from the HST Quasar Absorption Line Key Project. The aim of this survey is to identi…