Fig. 5
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[Zr/Fe] ratios in the sample of 237 RGB stars in 47 Tuc. Top panel: [Zr/Fe] versus [Na/Fe] ratios. Middle and bottom panels, respectively: [Zr/Fe] and [Na/Fe] ratios versus projected distance from the cluster centre, r/rh. Linear least-square best fits are shown as solid lines, fit parameters, correlation coefficients, and the p-values are provided in each individual panel. Typical errors of the individual abundance measurements are indicated in the top panel.
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