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Fig. 11

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Abundance ratio of magnesium to iron ([Mg/Fe]) versus metallicity ([Fe/H]) for stars in the Milky Way field as derived using OssicoNN astrophysical parameters (left panel) and the GES recommended values (right). Stars were selected from the Catalogue dataset where ‘GES_TYPE = GES_MW’, with [Fe/H] and [Mg/H] derived by the classical pipelines, totalling 11 909 stars.

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