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Fig. 9

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log   ϵ(Ba) versus log ϵ(Sr) for the three Boötes I stars. For comparison, the abundance data for MW halo giants are extracted from SAGA database (Suda et al. 2008) with the criteria −3.5 < [Fe/H] < −2.0 and a spectral resolution R > 30   000 with no flags of “C-rich” nor of “CEMP”.

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