NGC 6240: extended CO structures and their association with shocked gas C. Feruglio, F. Fiore, R. Maiolino, E. Piconcelli, H. Aussel, D. Elbaz, E. Le Floc’h, E. Sturm, R. Davies and C. Cicone A&A, 549 (2013) A51 Published online: 18 December 2012 DOI: 10.1051/0004-6361/201219746