EAS Publications Series
Volume 14, 2005Dome C Astronomy and Astrophysics Meeting
|Page(s)||349 - 354|
|Published online||05 January 2006|
M. Giard, F. Casoli and F. Paletou (eds)
EAS Publications Series, 14 (2005) 349-354
Doppler ground-based asteroseismology of the exoplanets host star μ Arae
Observatoire Midi-Pyrénées, 14 Av. E. Belin, 31400 Toulouse, France
2 Laboratoire d'Astrophysique de Marseille, Traverse du Siphon, 13013 Marseille, France
3 Centro de Astrofisica da Universidade de Lisbo, Tapada da Ajuda, 1349-018 Lisboa, Portugal
We present here a new result of ground-based asteroseismology obtained with the spectrograph HARPS. The exoplanets host star μ Arae was observed during an 8 nights campaign in order to understand the origin of the overmetallicity of planet-hosting stars. Thanks to very high precision Doppler measurements, we identified more than 20 p-modes in this star and compared it with different models. These results demonstrate the potential of ground-based Doppler asteroseismology and should be considered to be implemented in Dome C in the future in order to benefit of long and uninterrupted observations.
© EAS, EDP Sciences, 2005
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