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Fig. B.1


From top to bottom: fit of the Y ii line at 508.7 nm, La ii line at 639.0 nm, Ce ii line at 462.8 nm, and Nd ii line at 531.9 nm for IC 4756.69. Black crosses: observed spectrum; red solid line: best fit; blue solid lines: spectra computed around the best fit value [X/Fe] ± 0.3 dex.

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