Abundances of neutron-capture elements as a function of the metallicity. Cepheid stars (filled circles) are compared with field dwarfs from the thin disk analyzed by R03 (magenta squares), from the thin disk (yellow diamonds) and thick disk (green diamonds) in Bensby et al. (2005, B05); compared with field dwarfs (crosses) and giants (open circles) in S04; and compared with field dwarfs in Edvardsson et al. (1993, E93, pluses) and in Feltzing & Gustafsson (1998, FG98, open triangles). RSG in the Scutum cluster analyzed by O13 (filled triangles) are also shown. The dotted lines indicate the positions of solar abundance ratios.
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