Diagram of [s/Fe] versus [Fe/H] for several classes of chemically peculiar binary stars. Barium giants (red open squares); CH stars (blue open polygons); subgiant CH stars (red plus signs); yellow-symbiotics (green filled diamonds); CEMP stars that are members of binary systems (red filled circles). The position of CD-62°1346 is marked by a black filled circle. Abundance data for barium giant and dwarf stars are taken from Allen & Barbuy (2006), Antipova et al. (2004), Liang et al. (2003), North et al. (1994), Smith et al. (1993), Drake & Pereira (2008), Pereira (2005), Pereira & Drake (2009, 2011); CH stars are taken from Vanture (1992b) and Van Eck et al. (2003); yellow symbiotics are taken from Smith et al. (1996, 1997) and Pereira & Roig (2009). The solid line is the mean  ⟨ [s/Fe] ⟩  for field stars (Gratton & Sneden 1994; Ryan et al. 1996; François et al. 2003).