The Evry Schatzman School is a recurrent CNRS thematic school, organized by the French National Stellar Physics Program (INSU, CNRS). In 2025, it will be dedicated to the Stellar Physics in the PLATO era. It will take place from September 21 to 26, 2025 at the Paul-Langevin Centre in Aussois (Savoie, France).
It is limited to 50 participants.
Rationale
The PLATO space mission (PLAnetary Transits and Oscillations of Stars), adopted in June 2017 as the 3rd medium-class mission of ESA's Cosmic Vision program, is planed for launch at the end of 2026. Its scientific objective is the study of planetary systems. Its uniqueness lies in the fact that the instrument allows, for the first time, the simultaneous study of a star and its surrounding planets.
To achieve this goal, PLATO combines two cutting-edge approaches: the detection of exoplanets with the transit method and the study of the internal structure of stars through stellar seismology. This will be made possible by ultra-high-precision photometric monitoring of several hundred thousand target stars continuously over several years. PLATO will be the first space photometry mission to enable long-term photometric monitoring of bright stars. This feature will allow for complementary ground-based observations, particularly through spectroscopy. Seismic analyses will provide precise determinations of stellar properties (such as mass, radius, and age) and help refine and constrain stellar evolution models, particularly in terms of their internal dynamics and transport processes. In addition to seismology, stellar light curves will also measure magnetic activity levels and rotation rates, which are key elements for characterizing stellar magnetic fields, understanding their dynamo generation mechanisms, and exploring their interactions with exoplanets, especially regarding habitability.
The goal of this school is to show how PLATO will enable remarkable progresses in physics of exoplanetary systems by precisely characterizing stars through determining their fundamental parameters (mass, radius), their age, their internal structure, or their magnetic activity. It will also show how seismology will improve our understanding of stellar evolution and constrain internal processes.
The school will be structured around asteroseismology, stellar activity and rotation. We will take special care to emphasize existing synergies with topics such as galactic archaeology and exoplanetology, and to introduce complementary observational approaches.
Who can apply?
The school is primarily intended for researchers, PhD students, and postdoctoral fellows aiming to develop projects related to the scientific exploitation of the PLATO mission. It is also open to PhD students, postdoctoral fellows, and researchers aiming to discover the stellar physics that will be accessible with PLATO.
Courses & Speakers
The school will be structured around 5 main courses (in English) covering:
Asteroseismology, theoretical basis (Jordan Philidet, LIRA, FR) and data analysis (Rafael García, AIM-CEA, FR)
Seismic inferences (Gaël Buldgen, Uni. Liège, BE)
Rotation and magnetic activity (Sylvain Breton and Giovanni Bruno, INAF-OACT, IT)
Registration is open from March 15 to June 15, 2025, limited to 50 participants.
Thanks to the support of CNRS Continuing Education, ATPS, CNES, the Jules Janssen Centre of the Paris Observatory, CEA, and IRAP, the school will cover the accommodation and meal expenses for all participants.
The School does not cover travel expenses, except for the speakers. For CNRS agents, these expenses can be covered upon request to their respective Regional Delegations. Other participants must request this funding from their laboratory. We especially encourage PhD students to ask their doctoral school to cover travel expenses.
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