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Fig. 8

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Heavy-element abundance pattern of HE 22524225 (filled rhombi) compared with the average element abundances (open triangles) of the four benchmark r-II stars, CS 22892-052, CS 31082-001, HE 1523-0901, and HE 1219-0312. An upper limit for the Pb abundance of HE 22524225 is indicated by downward-facing triangle. For the r-II stars, the error bars show the dispersion in the single star measurements around the mean, when the species was measured in more than one star. Otherwise it was adopted as 0.1 dex. For comparison, the SSr abundance patterns calculated using the s-process predictions of Arlandini et al. (1999; dotted curve) and Bisterzo et al. (2014; continuous curve) are shown. They and also the heavy-element abundances of the r-II stars have been scaled to match Eu–Tm in HE 22524225. The bottom panel displays the difference between HE 22524225 and the r-II stars defined as .

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