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Fig. 1
Full combined optical spectra of SDSS1256 (left) and 2MASS1626 (right) obtained with VLT/FORS2 and GTC/OSIRIS, respectively. Both spectra are in the Earth frame and have been arbitrarily normalised at 7050 Å. Some important bands and features seen in metal-poor dwarfs are marked in red.
This figure is made of several images, please see below:
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