Fig. 3

Distribution of [Fe/H] error for main sequence field UVES stars in GES iDR4 catalogue. The upper panel displays the relation of [Fe/H] and [Fe/H] error, while the centre and lower panels show the histogram and cumulative frequency of [Fe/H] error, respectively. Ninety-five percent of stars lie in the interval smaller than 0.13 dex (vertical dashed lines in the last two panels).
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