Fig. 2
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Normalised observed spectrum of the star GJ 880 as black dashed line, and best-fit model (synthetic spectrum predicted by the Payne’s ANN for the parameters given in Table 2) as orange solid line. Grey shaded areas indicate the location of the line mask we used. Derived parameters for this star are Teff: 3649 K, logɡ: 4.8 dex, and [Fe/H]: 0.25 dex.
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