Separated twins or just siblings? A multi-planet system around an M dwarf including a cool sub-Neptune

Mallory Harris, Diana Dragomir, Ismael Mireles +27

We report the discovery of two TESS sub-Neptunes orbiting the early M dwarf TOI-904 (TIC 261257684). Both exoplanets, TOI-904 b and c, were initially observed in TESS Sector 12 wit…