Illustration of an ultra-hot exoplanet (planet outside the Solar System) transiting in front of its host star. When light from the star passes through the planet?™s atmosphere, it is filtered by the chemical elements and molecules in the gaseous layer. With sensitive instruments, the signatures of those elements and molecules can be observed from Earth. Using the European Southern Observatory's (ESO) Very Large Telescope (VLT), astronomers were surprised to find the heaviest element so far in an exoplanet's atmosphere, barium. Barium was found at high altitudes in two exoplanets classified as ultra-hot Jupiters, WASP-76 b and WASP-121 b. This discovery indicates that there is still much to be learned regarding the unique atmospheric compositions of these exoplanets.
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Details
Creative#:
TOP29153792
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
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No
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This image may not be used by or to promote the arms, nuclear power or tobacco industries or any religious organisation, or in any discriminatory way, or to imply the endorsement by ESO of any product, service or activity
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