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Fig. 7.


Behavior of the average [Al/Fe], [Mg/Fe], and [N/Fe] abundance ratios of our synthesis analysis (red and blue filled symbols) compared with DR14 abundances from field stars (gray dots), and overplotted with APOGEE DR14 determinations for the first (green filled triangles) and second populations (green empty triangles) in GCs M 5, M 71, and M 107 (Mészáros et al. 2015). Orange triangles and cyan squares are very likely members of NGC 6522 from the Gaia-ESO survey; Recio-Blanco et al. (2017) and Ness et al. (2014), respectively.

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