Hydroxyl Molecule tagged posts

Astronomers detect Hydroxyl Molecule Signature in an Exoplanet Atmosphere

Artist’s impression of an ultra-hot Jupiter exoplanet, WASP-33b. Image credit Astrobiology Center.
Artist’s impression of an ultra-hot Jupiter exoplanet, WASP-33b. Image credit: Astrobiology Center.

An international collaboration of astronomers led by a researcher from the Astrobiology Center and Queen’s University Belfast, and including researchers from Trinity College Dublin, has detected a new chemical signature in the atmosphere of an extrasolar planet (a planet that orbits a star other than our Sun).

The hydroxyl radical (OH) was found on the dayside of the exoplanet WASP-33b. This planet is a so-called ‘ultra-hot Jupiter’, a gas-giant planet orbiting its host star much closer than Mercury orbits the Sun and therefore reaching atmospheric temperatures of more than 2,500° C (hot enough to melt most metals).

The lead researcher based at the Astrobiology Center and Queen’...

Read More