Grether, DanielLineweaver, Charles2015-12-080004-637Xhttp://hdl.handle.net/1885/29265We examine the relationship between the frequency of close companions (stellar and planetary companions with orbital periods <5 yr) and the metallicity of their Sun-like (∼FGK) hosts. We confirm and quantify a ∼4 σ positive correlation between host mKeywords: Binaries: close; Stars: abundances; Stars: kinematics200710.1086/5217142015-12-08