Kepler-93 : a testbed for detailed seismic modelling and orbital evolution of super-earths around solar-like stars

Thanks to the high-quality data from space-based missions such as CoRoT, Kepler and TESS, great synergies between asteroseismology and exoplanetology were initiated and will further flourish with the future PLATO mission. Indeed, the exoplanets detection itself does not rely on stellar-model-dependent approaches and thus, a detailed characterization of the host star improves significantly the understanding of the exoplanet. In this context, we focused on Kepler-93, whose high-quality data and stellar properties make it a PLATO benchmark target and motivate a new characterization to reach their precision requirements. We carried out a detailed stellar modeling using global and local minimization techniques and considering various changes of the physical ingredients. We completed our analysis with 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 modeling will be able to meet the PLATO standards for such a solar-like star.