Abstract Study Analysis Group 21 (SAG21) of NASA's Exoplanet Exploration Program
Analysis Group was organized to study the effect of stellar contamination on space-based …

We have collected transit times for the TRAPPIST-1 system with the Spitzer Space
Telescope over four years. We add to these ground-based, HST, and K2 transit-time …

Context. Previous theoretical works on planet formation around low-mass stars have often
been limited to large planets and individual systems. As current surveys routinely detect …

Ultracool dwarf stars are abundant, long-lived and uniquely suited to enable the
atmospheric study of transiting terrestrial companions with the JWST. Among them, the most …

Context. In the age of JWST, temperate terrestrial exoplanets transiting nearby late-type M
dwarfs provide unique opportunities for characterising their atmospheres, as well as …

ABSTRACT CHEOPS (CHaracterising ExOPlanet Satellite) is an ESA S-class mission that
observes bright stars at high cadence from low-Earth orbit. The main aim of the mission is to …

We report the discovery and characterisation of a super-Earth and a sub-Neptune transiting
the bright (K= 8.8), quiet, and nearby (37 pc) M3V dwarf TOI-1266. We validate the planetary …

Context. One of the most promising avenues for the detailed study of temperate Earth-sized
exoplanets is the detection of such planets in transit in front of stars that are small and near …

Context. Several planetary formation models have been proposed to explain the observed
abundance and variety of compositions of super-Earths and mini-Neptunes. In this context …

We present robust planet occurrence rates for Kepler planet candidates around M stars for
planet radii Rp= 0.5–4 R⊕ and orbital periods P= 0.5–256 d using the approximate …