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Fig. 7


Abundance ratios [α/Fe] vs. [Fe/H] for the total sample. The blue triangles refer to the thick disk, red circles to the thin disk. The green asterisks and the black crosses refer to the transition stars between thin-thick and thick-halo, respectively. Magenta squares represent the stars belonging to the halo. The black dashed curve separates the stars with high- and low-α content.

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