Rayleigh scattering by H2 in the extrasolar planet HD 209458b A. Lecavelier des Etangs, A. Vidal-Madjar, J.-M. Désert and D. Sing A&A, 485 3 (2008) 865-869 Published online: 06 May 2008 DOI: 10.1051/0004-6361:200809704