The Titanium Chemistry of WASP-121 b: A High-Precision Look at an Ultrahot Jupiter
Researchers used high-resolution spectroscopy with ESPRESSO to study the atmosphere of WASP-121 b, detecting Ti I at high significance but no TiO. Titanium appears concentrated in the planet’s equatorial jet, challenging existing models. These findings highlight complex atmospheric chemistry and the need for further observations with JWST and ELT.
Unlocking the Secrets of WASP-121b with JWST
Using JWST's NIRSpec, researchers precisely measured the mass, age, and atmospheric dynamics of the ultra-hot Jupiter WASP-121b and its host star. They discovered strong winds in the planet's atmosphere and achieved unprecedented precision in mass and age estimates, revealing a 1.11-billion-year-old system. This study showcases JWST's transformative role in advancing exoplanet research.