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Fig. 2


Observed elemental abundances as a function of metallicity for the main subsample of stars. The names of the chemical elements are written in each panel. The error bar in the right lower corner of each panel indicate the typical error over the sample: the smaller error bar is the median error over the whole main subsample, while the larger errorbar is the median error over abundances derived from spectra with S/N< 25 in HR10.

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