Article ISI
Astronomy & Astrophysics, Volume 577  (2015)

VLT/UVES observations of extremely strong intervening damped Lyman-α systems. Molecular hydrogen and excited carbon, oxygen, and silicon at log N(H i) = 22.4

Noterdaeme, P.; Srianand, R.; Rahmani, H.; Petitjean, P.; Pâris, I.; Ledoux, C.; Gupta, N.; López, S.