Stellar fundamental parameters inverted from the analysis of S4N spectra, using our PCA-Elodie method vs. their S4N catalogue values of reference (except for vsini – see text). The bias and standard deviation deduced from the analysis of the difference between inverted and catalogue and reference parameters are (− 74; 115) for Teff, (0.16; 0.16) for log g and (− 0.01; 0.11) for [Fe/H]. For vsini values for which the source of data is not the S4N catalogue, however, we find (− 0.36; 1.61).
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