Proxima Cen and TRAPPIST-1 exoplanetary systems: possible climates and observational constraints
Résumé
The years 2016-2017 have been extremely fruitful in discoveries of interesting nearby Earth-size exoplanets. The detections of Proxima Cen b and TRAPPIST-1 planets are major discoveries mostly because these - very likely rocky - planets are the best candidates for future atmospheric characterization by transit spectroscopy, direct imaging, or thermal phase curve with the forthcoming ground (e.g. E-ELT) or space-based (e.g. JWST) astronomical observatories. We explore the possible climates of these planets and produce observational constraints that can be used to discriminate between all the possible atmospheric states of the planets.