Panel a): the best statistical fit for the 4554 Å line (diamonds) using a radial-tangential velocity profile (solid line). We have included a pure r-process, f_odd = 0.46, synthetic profile for comparison (dash-dot line). Also plotted are the splitting patterns for barium relative to barium-138 (see Table 2). Panel b): same as panel a) but for the 4934 Å line.