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Hotjupiter

All articles tagged with #hotjupiter

astronomy20 days ago•73 min saved

Twin Exoplanets Ride Inward Together, Rewriting Hot-Jupiter Origins

Astronomers using the James Webb Space Telescope studied TOI-1130, a system where a hot Jupiter (TOI-1130c) hosts a close companion mini-Neptune (TOI-1130b). The pair likely formed beyond the frost line and migrated inward together into a 2:1 resonance, with TOI-1130b showing a heavy atmosphere rich in water vapor, CO2, SO2 and methane. This rare architecture suggests hot Jupiters can form with companions and migrate as a pair, challenging prior ideas about planetary formation.

via Space|

#astronomy #exoplanets #hotjupiter

science-and-technology2 years ago•4 min saved

"Hubble Captures Extreme Weather on Remote Gas Giant"

The Hubble Space Telescope has observed extreme weather conditions on the hot Jupiter exoplanet WASP-121b, located 880 light-years away. The planet experiences intense cyclones and storms due to the significant temperature difference between its permanent day and night sides, with its atmosphere containing evaporated metals like iron and vanadium. These observations, combined with computer modeling, provide insights into the atmospheric dynamics of such exoplanets and could inform future studies of weather on smaller, potentially habitable worlds.

via Space.com|

##exoplanetweather #hotjupiter