Relative Fe abundances of giants (red circles) and dwarfs with planetary companions versus Teff. The sources of the giant abundances and Teff other than those for HD 13189 are given in the text. Dwarf abundances are from Fischer & Valenti (2005; black circles),
Santos, Israelian, & Mayor (2004; black squares), and Santos et al. (2005; black triangles). The horizontal line represents the mean Fe abundance ([Fe=H] = +0:13) of the dwarf sample.
Simon C. Schuler, James H. Kim, Michael C. Tinker, Jr., et al.