Résumé / Abstract Journal-club_Doctorants

Journal-club Doctorants / Journal-club PhD students

« Detection of O I and C II on HD 189733 b with Hubble Space Telescope »

Mo Yang
Institut d'Astrophysique de Paris (Paris, France)

The Cosmic Origins Spectrograph (COS) was installed on the Hubble Space Telescope (HST) in 2009. COS performs high-sensitivity, medium-resolution spectroscopy of astronomical objects, providing opportunities for observing faint sources of ultraviolet light. HD 189733 b is a transiting hot Jupiter orbiting a young and active K type star. Detecting heavy atoms in the atmospheres of giant exoplanets is a key factor for understanding their composition and evolution. I will talk about the detection of O I and C II during four HD 189733 b transits using COS data, and compare the observational transit depth to our atmospheric hydrodynamic model.
vendredi 22 novembre 2019 - 16:00
Salle du Conseil, Institut d'Astrophysique
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