2 papers
astro-ph2008
Recovering the topology of the IGM at z~2
S. Caucci, S. Colombi, C. Pichon +3
We investigate how well the 3D density field of neutral hydrogen in the Intergalactic Medium (IGM) can be reconstructed using the Lyman-alpha absorptions observed along lines of si…
astro-ph2005
Kinematics and star formation activity in the z=2.03954 damped Lyman-alpha system towards PKS 0458-020
Janine Heinmueller, Patrick Petitjean, Cedric Ledoux +2
We present UVES observations of the log N(HI)= 21.7 damped Lyman-alpha system at z=2.03954 towards the quasar PKS 0458-020. HI Lyman-alpha emission is detected in the center of the…