PLATO will achieve its science objectives by performing:
- Planet detection and radius determination from photometric transits;
- Determination of planet masses from ground-based radial velocity follow-up;
- Determination of accurate stellar masses, radii, and ages from asteroseismology;
- Identification of bright exoplanet hosts that will be targets for atmospheric spectroscopy.
Planets will be detected by the PLATO satellite, whose data will enable the measurements of the planets’ size, the characterisation of the orbits, and – through asterosismology – the characterisation of stellar mass and ages. Radial velocity data, collected from the ground for the discovered planets, will render it possible the measurement of planets’ mass and the assessment of the rocky vs. gases nature of the detected planets.
All these information will be used to select the most interesting planets for atmospheric spectroscopy.