Mathematics – Logic
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sf2a.conf..255m&link_type=abstract
SF2A-2004: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 14-18, 2004. Edited by F. Combes, D. Barret
Mathematics
Logic
Scientific paper
A 10-night asteroseismic observation programme has been conducted in January 2004 with the new spectrometer HARPS at ES0 3.6-m telescope. This instrument, dedicated to the search of exoplanets, presents currently the best performance for radial velocity measurements. The selected target, the 6th magnitude F2V star HD 49933, was chosen among the prime targets of Corot, the European space mission dedicated to characterize stellar oscillations mode with high precision photometry measurements. We will present the first results, and develop them in different directions. We first obtain unique indications on the solar-like oscillations of the target, in a previously unexplored region of the HR seismic diagramme. We will relate these observations to the preparation of the Corot mission. The capability of Harps for ground-based asteroseismologic observations will be discussed : even if the data reduction is still in progress, it is already clear that simultaneous measurements (in network, or from the South Pole) are necessary to make the most of ground-based asteroseismology.
Baglin Annie
Bouchy Florent
Catala Claude
Michel Eberhard
Mosser Benoit
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