Spectra of the three brightest stars for which an EW could be measured for the Ba II 6141 Å line (indicated with a dotted vertical line). The strongest features in this wavelength range are the two Fe i lines to the left in the spectra (6136–6138 Å). Shown in red are synthetic spectra with the best-fit Ba-abundance (thick lines) and bracketing log ε(Ba)  ±  0.4 dex (thin lines).