Detection of neutral atomic species in the ultra-hot jupiter WASP-121b

Understand

The class of ultra-hot Jupiters comprises giant exoplanets undergoing intense irradiation from their host stars.

• They have proved to be a particularly interesting population for their orbital and atmospheric properties.
• One such planet, WASP-121~b, is in a highly misaligned orbit close to its Roche limit, and its atmosphere exhibits a thermal inversion.
• These properties make WASP-121~b an interesting target for additional atmospheric characterization.