Fits of the 4934 Å Ba resonance line. The stars to which each plot corresponds are indicated in the plots. The observational profiles are represented by the black lines. Synthetic profiles are represented by coloured lines. The synthetic profiles most compatible with the observational ones are represented by the thick olive lines; their s-process contributions are noted along with the errors related to the noise. Synthetic profiles related to s- and r-processes are represented by the dotted or dashed green lines according to the legends. A synthetic spectra without barium are represented by the dotted red lines. The probability for a given process to dominate the line profile shape is given by the χ² in the inner plot. The shades in the inner plots cover errors of the s-process contribution. Residual plots are shown at the bottom panel, where the shades represent the areas covered by the fitting errors.