Computer Science – Performance
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sf2a.conf..319p&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
Computer Science
Performance
Scientific paper
The surface oscillations of solar-like stars provide precious informations on their global characteristics (mass, composition) and structure. The open-clusters reveal particularly interesting in this respect. We have built stellar models of Hyades stars for different masses and plausible ages and compositions of this cluster. Several seismic quantities were subsequently evaluated. I will address the question of performances necessary to complete precise seismic observations for solar-like Hyades. Then I will present our prospective work in asteroseismology and I will show how the analysis of the collective seismic effects can improve our knowledge on these stars. For instance the relation between the acoustic radius of the inner radiative core and the effective temperature reveals extremely sensitive to the convective efficiency in the superadiabatic layers. This relation should allow to set constraints on convective efficiency and therefore on the hydrodynamical simulations of convection.
Ballot Jérôme
Piau Laurent
Turck-Chieze Sylvaine
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