A transiting giant planet in orbit around a 0.2-solar-mass host star.

ABSTRACT: Planet formation models indicate that the formation of giant planets is substantially harder around low-mass stars due to the scaling of protoplanetary disc masses with stellar mass. The discovery of giant planets orbiting such low-mass stars thus imposes strong constraints on giant planet formation processes. Here we report the discovery of a transiting giant planet orbiting a 0.207 ± 0.011 M _⊙ star. The planet, TOI-6894 b, has a mass and radius of M _P = 0.168 ± 0.022 M _J (53.4 ± 7.1 M _⊕) and R _P = 0.855 ± 0.022 R _J and probably includes 12 ± 2 M _⊕ of metals. The discovery of TOI-6894 b highlights the need for a better understanding of giant planet formation mechan

SUBMITTER: Bryant EM 

PROVIDER: S-EPMC12274134 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature