Fig. 2.
Sodium-oxygen anticorrelation using data from Marino et al. (2011) and Simpson et al. (2020), color-coded by metallicity. Star J110842 is indicated by a red star. We also indicate the empirical separations into first, second, and extreme generations (dashed black) and the simplistic dilution model (red line) by Carretta et al. (2009).
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