Fig. 16
[Rb/Fe] vs. [Fe/H] for our sample stars (filled black circles) compared to the sample of Takeda (2021) (open red squares). The horizontal dotted line is the reference zero value with A(Rb) = 2.60 as the solar abundance, the dashed line would be the zero reference for the meteoritic abundance, A(Rb) = 2.38. Unlike Fig. 15, this plot shows the NLTE Rb abundances.
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