First detection of hydrogen in the Pictoris gas disk P. A. Wilson, A. Lecavelier des Etangs, A. Vidal-Madjar, V. Bourrier, G. Hébrard, F. Kiefer, H. Beust, R. Ferlet and A.-M. Lagrange A&A, 599 (2017) A75 Published online: 02 March 2017 DOI: 10.1051/0004-6361/201629293