Fig. 18.
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Li features for the “solar twins” with varying Li abundance. The solar twins in the training sample are selected with S/N > 90 pix−1 and with GES Teff = 5777 ± 150 K, log(g) = 4.44±0.15 dex and [Fe/H] = 0.0±0.15 dex. The colors represent the A(Li) bins, as listed on the left. On the right, we show the mean of CNN prediction for the shown spectra in each bin.
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