Fig. 6
Synthetic spectrum fit to the yttrium line at 5402 Å in the observed spectrum of HD 21543 (left panel) and to the barium line at 5853 Å in the observed spectrum of HD 224817. The observed spectra are shown by solid lines with dots. The dotted lines are synthetic spectra with [Y/Fe] = 0.01 ± 0.1 and with [Ba/Fe] = −0.10 ± 0.1, respectively.
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