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Fig. 1

image

Behaviour of the elements of interest as a function of v sin i. Each row displays a different element and each column a different OC, sorted by age, as annotated. Stars are coloured as a function of Teff. The median [Fe/H] abundance of each OC is represented as a solid green line in the top panels, along with its error range (dashed green lines). Stars with [Fe/H] beyond the normal error range, which are suspected of being chemically peculiar Am and Fm stars affected by strong metallicism, are marked with black crosses. The solar line is plotted in orange. Median error bars are plotted in dark red.

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