Overview
Enhance synergies in exoplanetary science and stellar physics
Stars are the chemical and dynamical engines of the Universe. Through the chemical evolution of their cores, they produce most of the heavy elements observed today, including those composing our bodies. Their properties also shape the architecture and evolution of planetary systems, both from the dynamical and atmospheric point of views. Space-borne missions (e.g. CoRoT, Kepler and CHEOPS) and ground-based observatories (Espresso, EXPRESS, HARPS and ALMA) have brought a data-driven revolution in both stellar physics and exoplanetology. Ongoing (Gaia, TESS and JWST) and future (ARIEL and PLATO) missions will further shape the orientation of both domains towards detailed characterization of solar-like stars and planets alike.
Both fields are thus at a critical point in their common history, with worldwide multidisciplinary advances in theoretical modelling being paramount to understand the exquisite information provided by present surveys and maximise the scientific
returns of future missions. These include, among others, the impact of stellar activity on planetary atmospheres and the impact of dynamical evolution of exoplanetary systems. Both effects have repercussions on the stellar properties such as rotation or chemical composition and thus require a better modelling of stellar properties themselves.
With this symposium, we wish to gather experts of both exoplanetary science and stellar physics to discuss the current challenges faced by each respective field. From this understanding of their mutual goals, needs and their respective analysis techniques, we wish to build a better mutual understanding that will enhance synergies between both fields and set the stage for a successful exploitation of the new generations of ground-based and space-borne instruments.
Key topics
- Physical ingredients of stellar evolution models: from the smallest scales and atomic physics to the modelling of large-scale turbulent flows.
- Current tests of stellar evolution models from combined spectroscopic, interferometric, astrometric and asteroseismic constraints.
- Dynamical and atmospheric evolution of planetary systems, observational signatures of star-planet interactions.
- Stellar atmospheres, winds, accretion and their importance for tracing star-planet interactions.
- Roadmap for future breakthroughs, in light of the upcoming ground-based instruments and space missions.
