[0910.0675] Intrinsic iron spread and a new metallicity scale for Globular Clusters →
Eugenio Carretta, Angela Bragaglia, Raffaele Gratton, Valentina D’Orazi, Sara Lucatello :: We have collected spectra of about 2000 red giant branch (RGB) stars in 19 Galactic globular clusters (GC) using FLAMES@VLT (about 100 star with GIRAFFE and about 10 with UVES, respectively, in each GC). These observations provide an unprecedented, precise, and homogeneous data-set of Fe abundances in GCs….
