Relazione su invito

CHEOPS and PLATO: the european path towards the discovery and characterization of exoplanets from space.

Piotto G.
  Giovedì 29/09   16:30 - 19:00   Edificio Psicologia 2 - Aula 2E   III - Astrofisica
The discovery and characterization of exoplanets is a new but very active research field in astrophysics. Countless ground-based surveys are presently ongoing, but the success of NASA/Kepler mission has clearly shown the necessity of dedicated satellites for breakthrough advancements. The European Space Agency has selected two exoplanet study missions within the Cosmic Vision program: the CHEOPS (CHaracterizing ExOplanet Satellite), an S-class mission, approved for a launch in middle 2018), and PLATO (PLAnetary Transits and stellar Oscillations), an M-class mission, foreseen for a launch in 2025. CHEOPS will be dedicated to the characterization (planet radius with errors $<10$%, density measurement) of already discovered planets. PLATO, with a field of view of 2400 square degrees is a survey mission, expected to discover 10000 s of exoplanets, with $>100$ terrestrial planets, with a few Earth analogous in habitable zones. In this talk I will summarize the status of the two missions, and the expected results.