A(Pt/Eu) vs. A(Os/Eu) for observations and nucleosynthesis calculations. Black circles with error bars are abundance detections derived in this work, while left-pointing triangles are upper limits in Os. Sneden’s star is depicted in brown, while the solar r- (s-) residuals are given by the grey solid (dashed) lines. The calculations assume different r-process sites (colours) and different nuclear inputs (symbols). None of the calculations are able to reproduce the large A(Pt/Eu) and A(Os/Eu) values of the three stars in the upper right (magenta), which make up the Eu-tail in Fig. 8.