Best fit 3D (solid black line – f_odd = 0.38) and 1D (dashed red line – f_odd = 0.02 from Paper I) fits to the observed Ba ii 4554 Å profile (black diamonds). A residual plot is presented in the bottom panel. We have also included a lower isotope ratio fit to the observed profile (dashed-dot line) for f_odd = 0.25, i.e. 40%, for the same υsini and A(Ba) values used in the best fit.