Fig. 5
Alpha-element abundances vs. metallicity. Symbols are colour coded according to host galaxy as indicated in the legend. Also included are data for Milky Way globular clusters (open circles; Pritzl et al. 2005) and field stars (grey dots; Venn et al. 2004). Data for the Galactic GC Rup 106 are shown with a green star (Villanova et al. 2013).
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