MUSE crowded field 3D spectroscopy of over 12 000 stars in the globular cluster NGC 6397 - I. The first comprehensive HRD of a globular cluster
Tim-Oliver Husser, Sebastian Kamann, Stefan Dreizler, Martin Wendt, Nina Wulff, Roland Bacon, Lutz Wisotzki, Jarle Brinchmann, Peter M. Weilbacher, Martin M. Roth and Ana Monreal-Ibero
