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astro-ph2000
Molecular hydrogen and the nature of damped Lyman-alpha systems
Patrick Petitjean, R. Srianand, Cédric Ledoux
We report results from our mini-survey for molecular hydrogen in eight high redshift damped Lyman-alpha (DLA) systems using the ESO Ultra-violet and Visible Spectrograph on the VLT…
astro-ph2000
Structure of the MgII and damped Lyman-alpha systems along the line of sight to APM 08279+5255
Patrick Petitjean, Bastien Aracil, R. Srianand +1
A study of the absorption systems toward the gravitationally lensed quasar APM 08279+5255 is presented. Most of the MgII systems in the redshift range 1.2-2.07, although saturated,…
astro-ph2000
Physical conditions in broad and associated narrow absorption-line systems toward APM 08279+5255
R. Srianand, P. Petitjean
Results of a careful analysis of the absorption systems with zabs = zem seen toward the bright, z_em ~ 3.91, gravitationally lensed quasar APM 08279+5255 are presented. Two of the…