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Fig. 3

image

[α/Fe] vs. [Fe/H] for HD 220197 (upper star) and HD 233832 (lower star). Thin-disc, thick-disc, and halo stars are shown with circles, squares, and asterisks, respectively (filled symbols: Soubiran & Girard 2005; open symbols: Adibekyan et al. 2012c).

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