Oxygen and carbon discovered in extrasolar planet atmosphere "blow-off" [artist's impression]
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".Credit:
European Space Agency and Alfred Vidal-Madjar (Institut d'Astrophysique de Paris, CNRS, France)
About the Image
|Release date:||2 February 2004, 15:00|
|Size:||2500 x 2024 px|
About the Object
|Name:||HD 209458b, Osiris|
|Type:||Milky Way : Star : Circumstellar Material : Planetary System|
|Distance:||150 light years|