Fig. 2
Top panel: comparison of metallicities obtained with the spectral fitting (this work) versus the values compiled in literature by Schiavon et al. (2005) (blue squares) and Carretta et al. (2009) (black triangles) for the Galactic GCs. The error bar in the top left corner indicates the mean error values. Bottom panel: [Fe/H] residuals (ours minus literature values).
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