Fig. 3

[O/Fe] vs. [Fe/H] for 351 red giants (excluding N-rich, O-poor ones). Chemodynamical evolution models from FB17 with formation timescale of 2 Gyr, or specific star formation rate of 0.5 Gyr−1 are overplotted. Solid lines: 5 < 0.5 kpc; dotted lines: 0.5 < r < 1 kpc; dashed lines: 1 < r < 2 kpc; long-dashed lines: 2 < r < 3 kpc. Symbols: red filled circles: present work; green filled circles: Friaça & Barbuy (2017); blue stars: Jönsson et al. (2017); black stars: Ryde et al. (2010); grey filled squares: Schultheis et al. (2017); magenta open circles: García-Pérez et al. (2013); blue open circles: Howes et al. (2016); green open circles: Lamb et al. (2017). Errors indicated correspond to 0.1dex in both [Fe/H] and [O/Fe]. The model lines correspond to different radii from the Galactic centre: solid lines: r < 0.5 kpc; dotted lines: 0.5 < r < 1 kpc; dashed lines: 1 < r < 2 kpc; long-dashed lines: 2 < r < 3 kpc. A typical error bar is indicated in the right upper corner.
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