Fig. 5
The comparison between the metallicity derived from the low resolution SDSS spectra and our high resolution observations. Crosses represent UVES data (Bonifacio et al., in prep.), and circles the X-Shooter results. The circle-cross symbol is SDSS J102915+172927, discussed in Caffau et al. (2011b), for which we have both X-Shooter and UVES data.
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