Asteroseismology and next generation stellar models
Owing to the great success of the space missions CoRoT and Kepler, stellar seismology is living a golden age with an increasing number of works using asteroseimic data. Seismology is now settled as a major tool to probe stellar interiors in various phases of evolution and to put constraints on physical processes at work there: microphysics properties but also transport mechanisms of chemical species and angular momentum. In addition, several works already revealed that seismology interest goes beyond the strict domain of stellar structure. The possibility to characterize precisely star-planets systems and to study their interactions is one example. The possibility to estimate masses and radii as well as evolution stages, for thousands of red giants makes now possible to extend its application to the study of stellar population in our galaxy. Seismic data are thus expected to feed many works to come in stellar physics and beyond, either to develop and test new generation stellar models or to characterize stars as elements or tracers of broader systems. It is thus important to help a large scientific community to become familiar with this new technique, its theoretical bases, its observational specificities, its diagnostic capabilities and also its limits.
This thematic school is the 24th edition of the Ecole Evry Schatzman , organized by the french Programme National de Physique Stellaire (PNPS). It is open to students, researchers and engineers who want to become familiar with stellar seismic investigation, in order to participate to the exploitation of existing data or to prepare future missions and instruments. Lectures (in english) will introduce the theoretical bases of stellar oscillations, the observational techniques, the analysis techniques and the seismic diagnostics. They will be widely illustrated with recent results.
Lectures program:
Stellar oscillations I: the adiabatic case (Benoît Mosser).
Stellar oscillations II: the non-adiabatic case (Réza Samadi/Kevin Belkacem).
Observational tools and analysis methods (Rafael Garcia).
Beyond the standard hydrodynamical model (Patrick Eggenberger).
On the understanding of galactic stellar populations using asteroseismology (Cristina Chiappini).
One seminar: the next ground-based and space missions (Jérôme Ballot).