First JWST thermal phase curves of temperate terrestrial exoplanets reveal no thick atmosphere around TRAPPIST-1 b and c

Michaël Gillon, Elsa Ducrot, Taylor J. Bell +30

We report JWST/MIRI 15 $\hat{I}¼$m phase curves of TRAPPIST-1 b and c, revealing thermal emission consistent with their irradiation levels, assuming no efficient heat redistribution. We…