[Ba/Fe] vs. [Fe/H] abundances ratios of the halo stars (data from Frebel 2010): black open circle are normal stars, blue open circle for CEMP-s stars (open triangles without Eu value) magenta open circle for CEMP-rs, cyan filled circle for CEMP-no, and red × marker for the CEMP-r star. The error bars represent the mean and the standard deviations for the normal stars abundances calculated over different bins in [Fe/H]. The bins are calculated in such a way that each bin contains the same number of data points. The results of the homogenous model with the assumed empirical yields for Ba is shown by the solid line; the dashed line shows the results when only the “standard” r-process site is considered.
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