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Photospheric and coronal abundances of solar-type stars with planets: the case of τ Bootis

Published online by Cambridge University Press:  09 March 2010

Antonio Maggio ,
Jorge Sanz-Forcada  and
Luigi Scelsi
Antonio Maggio
Affiliation:
INAF – Osservatorio Astronomico di Palermo, piazza del Parlamento 1, I-90134, Palermo, Italy email: maggio@astropa.inaf.it
Jorge Sanz-Forcada
Affiliation:
Centro de Astrobiologia, CSIC-INTA, European Space Astronomy Centre, Apartado 78, E-28691 Villanueva de la Canada (Madrid), Spain email: jsanz@laeff.inta.es
Luigi Scelsi
Affiliation:
INAF – Osservatorio Astronomico di Palermo, piazza del Parlamento 1, I-90134, Palermo, Italy email: maggio@astropa.inaf.it
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Abstract

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We present the results of a study of coronal and photospheric abundances in τ Bootis, a middle-aged solar analogue, well known for the presence of a close-in Jovian mass planet. We employ the results of this study, based on high-resolution optical and X-ray spectra, to address the issue of abundance stratification vs. First Ionization Potential (FIP) in the outer stellar atmospheres of solar-type stars with and without planets.

Keywords

stars: abundancesstars: activitystars: coronaestars: late-typeX-rays: stars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S265: Chemical Abundances in the Universe: Connecting First Stars to Planets , August 2009 , pp. 436 - 437
Copyright
Copyright © International Astronomical Union 2010

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