Fig. 12.
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(Anti-)Correlations indicating effects of multiple stellar populations. The dotted orange line in both left panels represents the transition to the N-rich regime at [N/Fe] ∼ 0.7 for [Fe/H] around the NGC 6355 value (Fernández-Trincado et al. 2022). Additionally, the grey line in the two bottom panels shows the upper limit for first-generation stars (Mészáros et al. 2020). The colour bar shows the Mg abundances.
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