Abundances in stars with exoplanets
arXiv:astro-ph/0310377
Abstract
Extensive spectroscopic studies of stars with and without planets have concluded that stars hosting planets are significantly more metal-rich than those without planets. More subtle trends of different chemical elements begin to appear as the number of detected extrasolar planetary systems continues to grow. I review our current knowledge concerning the observed abundance trends of various chemical elements in stars with exoplanets and their possible implications.
12 pages, 6 figures, to appear in IAU Symposium 219: Stars as Suns, Activity, Evolution and Planets, eds: A. K. Dupree and A. Benz