Warm gas at 50 AU in the disk around Herbig Be star HD 100546 M. Goto, G. van der Plas, M. van den Ancker, C. P. Dullemond, A. Carmona, Th. Henning, G. Meeus, H. Linz and B. Stecklum A&A, 539 (2012) A81 Published online: 27 February 2012 DOI: 10.1051/0004-6361/201117528