Journal Article

Parent stars of extrasolar planets – XI. Trends with condensation temperature revisited

G. Gonzalez, M. K. Carlson and R. W. Tobin

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 407, issue 1, pages 314-320
Published in print September 2010 | ISSN: 0035-8711
Published online August 2010 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2010.16900.x
Parent stars of extrasolar planets – XI. Trends with condensation temperature revisited

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We report the results of abundance analyses of new samples of stars with planets and stars without detected planets. We employ these data to compare abundance–condensation temperature trends in both samples. We find that stars with planets have more negative trends. In addition, the more metal-rich stars with planets display the most negative trends. These results confirm and extend the findings of Ramirez et al. and Melendez et al., who restricted their studies to solar analogues. We also show that the differences between the solar photospheric and CI meteoritic abundances correlate with condensation temperature.

Keywords: stars: abundances; planetary systems

Journal Article.  4053 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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