Fig. 6.
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Comparison between the observed (solid back circles) and synthetic spectra (lines) of the C-star Case 588 (belonging to the cluster Dias 2) in the APOGEE region. In this spectral region, some Ce II lines identified by Cunha et al. (2017) were used for abundance analysis. Dashed blue lines: no Ce and, [Ce/M] = 0.0; Solid red line: [Ce/M] = +1.2, best fit.
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