Tidal dissipation in the TRAPPIST-1 planets
Vera Dobos
Konkoly Observatory, CSFK, Hungary


The discovery of seven Earth-sized planets around the ultracool dwarf star TRAPPIST-1 in 2017 brought a new type of planetary system to our attention. Until new discoveries, the TRAPPIST-1 system serves as a prototype of an ultracool M dwarf with a planetary system of Earth-like planets. In my talk I will give a summary of what is known about the geophysics, possible interior structures, tidal dissipation and habitability of these planets.