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Fig. 4

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The pseudo-EW (pEW) of Sr II 4077 vs. Ba II 4554. The Sr-rich stars are plotted in red and labeled, and the rest of the stars in our HdC spectral sample are plotted in black. Note that we plot the pseudo-EWs of these lines rather than the traditional EWs as there is no true continuum to measure in many of these stars due to strong molecular bands.

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