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Wiley InterScience

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Parent stars of extrasolar planets – VIII. Chemical abundances for 18 elements in 31 stars
Guillermo Gonzalez 1★ and Chris Laws 2
  1 Iowa State University, Department of Physics and Astronomy, Ames, IA 50011, USA   2 Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USA
Correspondence to   E-mail: gonzog@iastate.edu
Copyright 2007 The Authors. Journal compilation © 2007 RAS
KEYWORDS
Stars: abundances • planetary systems

ABSTRACT

We present the results of detailed spectroscopic abundance analyses for 18 elements in 31 nearby stars with planets (SWPs). The resulting abundances are combined with other similar studies of nearby SWPs and compared to a sample of nearby stars without detected planets. We find some evidence for abundance differences between these two samples for Al, Si and Ti. Some of our results are in conflict with a recent study of SWPs in the SPOCS data base. We encourage continued study of the abundance patterns of SWPs to resolve these discrepancies.


Accepted 2007 April 11. Received 2007 March 4; in original form 2006 October 2

DIGITAL OBJECT IDENTIFIER (DOI)
10.1111/j.1365-2966.2007.11867.x About DOI

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