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

  • Antonio Maggio (a1), Jorge Sanz-Forcada (a2) and Luigi Scelsi (a1)

Abstract

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.

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References

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Anders, E. & Grevesse, N. 1989, Geochim. Cosmochim. Acta, 53, 197
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Sanz-Forcada, J., Favata, F., & Micela, G. 2004, A&A, 416, 281
Scelsi, L., Maggio, A., Peres, G., & Gondoin, P. 2004, A&A, 413, 643
Telleschi, A., Güdel, M., Briggs, K., Audard, M., Ness, J.-U., & Skinner, S. 2005, A&A, 622, 653
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Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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