The metallicity of stars with close companions

Grether, Daniel; Lineweaver, Charles

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The metallicity of stars with close companions

Date

2007

Authors

Grether, Daniel

Lineweaver, Charles

Publisher

IOP Publishing

Abstract

We 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 m