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Fig. 2


Spectral regions containing oxygen lines in HD 213240, a star from our database with an average S/N = 300 representative for our catalogue, HD 98281, for which the high S/N allows us to measure lines as small as 1 mÅ, and for the Kurucz Sun Atlas (Kurucz et al. 1984). Stellar parameters, EW of the oxygen lines (Ni blend contribution removed) and LTE abundances are provided in the plot. We note that the provided signal-to-noise ratio is the nominal S/N.

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