Kepler-93: a benchmark target for accurate asteroseismic characterization in preparation for the plato era
Abstract
The advent of space-based photometry missions, such as CoRoT, Kepler and TESS, has favoured a rapid development of asteroseismology and its synergies with exoplanetology. Such multi-disciplinary studies will further develop in the future with the PLATO mission.
A detailed characterization of the host star can significantly improve our understanding of exoplanetary systems. In this context, we focused on Kepler-93, whose high-quality data and stellar properties make it a PLATO benchmark target. We carried out a detailed stellar modelling using global and local minimization techniques, also considering various changes of the physical ingredients. Our analysis was completed by inversion techniques to provide a more robust mean density estimate and test the impact of surface effects. The revised stellar parameters allowed us to update the planetary parameters of Kepler-93b and simulate its orbital evolution under the effects of tides and atmospheric evaporation. We found that a detailed asteroseismic modelling will be able to meet the PLATO standards for such a solar-like star (Bétrisey et al. 2022).- Publication:
-
The 21st Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun
- Pub Date:
- November 2022
- DOI:
- 10.5281/zenodo.7347403
- Bibcode:
- 2022csss.confE..28B
- Keywords:
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- Stars: planetary systems;
- Stars: fundamental parameters;
- Asteroseismology;
- Planet–star interactions;
- Star: individual - Kepler-93;
- KOI-69;
- KIC-3544595;
- PLATO;
- Zenodo community cs21