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Rare-Earth metals in the atmosphere of a glowing-hot exoplanet

9 May 2019, 14:36 UTC
Rare-Earth metals in the atmosphere of a glowing-hot exoplanet UNIGE/Denis Bajram

KELT-9 b is the hottest exoplanet known to date. In the summer of 2018, a joint team of astronomers from the universities of Bern and Geneva and members of PlanetS found signatures of gaseous iron and titanium in its atmosphere. Now these researchers have also been able to detect traces of vaporized sodium, magnesium, chromium, and the rare-Earth metals scandium and yttrium.

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