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Fig. 27

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O-Ne-Mg SN model yields with 0.05 step sized decreasing Ye,min starting from  ~0.3 to 0.15 compared to observationally derived abundances of dwarf stars (blue, top) and giants (red, bottom). The abundances were normalised to Sr. These model predictions fit the pattern of the r-poor star (HD 122563) better than that of the r-rich star (CS 31082–001).

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