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Oxygen and carbon discovered in exoplanet atmosphere blow-off

Oxygen and carbon discovered in exoplanet atmosphere blow-off


Date: 01 February 2004
Satellite: Hubble Space Telescope
Depicts: HD 209458b, Osiris
Copyright: European Space Agency and Alfred Vidal-Madjar (Institut d'Astrophysique de Paris, CNRS, France)

This artist's impression shows an extended ellipsoidal envelope - the shape of a rugby-ball - of oxygen and carbon discovered around the well-known extrasolar planet HD 209458b.

An international team of astronomers led by Alfred Vidal-Madjar (Institut d'Astrophysique de Paris, CNRS, France) observed the first signs of oxygen and carbon in the atmosphere of a planet beyond our Solar System for the first time using the NASA/ESA Hubble Space Telescope.

The atoms of carbon and oxygen are swept up from the lower atmosphere with the flow of escaping atmospheric atomic hydrogen - like dust in a supersonic whirlwind - in a process called atmospheric 'blow off'.

Last Update: 1 September 2019
26-Nov-2022 23:13 UT

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https://sci.esa.int/s/8aVa60A

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