Fig. 6
CEMP stars from the literature and this work with the same symbols as in Fig. 1. a) [Ba/Eu] vs. [Fe/H]. The dotted lines are the limits of the range for CEMP-r/s and the dashed line is the limit for the r-process only, [Ba/Eu] = −0.7. The arrows up and down indicate upper limit for [Eu/Fe] and [Ba/Fe], respectively. b) [Ba/Fe] vs. [Eu/Fe]. Dashed line indicates [Ba/Eu] = −0.7, and dotted lines indicate where [Ba/Fe] = 0 and [Eu/Fe] = 0; CEMP-s and CEMP-r/s share instinctively the limits [Ba/Fe] > 0 and [Ba/Fe] = [Eu/Fe], whereas CEMP-no are inside the limits [Ba/Fe] and [Eu/Fe] < 0 and CEMP-r inside [Eu/Fe] > 0 and [Ba/Fe] = [Eu/Fe]. The arrows toward left and down indicate upper limit for [Eu/Fe] and [Ba/Fe], respectively.
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