Abundances of Y and Ba in Sculptor. The red line with a slope of a1 = 0.4 is the best fit for [Ba/H] < −2.1, while the magenta line with slope a2 = 0.8 is the best fit for data with [Ba/H] > −1.9. The two low outliers in [Y/H] at [Ba/H] ≈ −1 are not included in the fit. Solid black line shows [Y/Ba] = 0.
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