Séminaire Doctoral / Seminar PhD |
| « Detection of O I and C II on HD 189733 b with Hubble Space Telescope » |
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Mo Yang |
| 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. |
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vendredi 22 novembre 2019 - 16:00 Salle du Conseil, Institut d'Astrophysique |
| Page web du séminaire / Seminar's webpage |