Probing the 2D temperature structure of protoplanetary disks with Herschel observations of high-J CO linesD. Fedele, E. F. van Dishoeck, M. Kama, S. Bruderer and M. R. HogerheijdeA&A, 591 (2016) A95DOI: https://doi.org/10.1051/0004-6361/201526948