[CANCELED:] Exoplanet atmospheres at high spectral resolution: the case of WASP-18b

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• Matteo Brogi, University of Warwick
• Friday 17 February 2023, 15:00-16:00
• Aston Webb G33 .

If you have a question about this talk, please contact Nathan Steinle.

High-resolution spectroscopy (HRS) from the ground has become a great complement to space observations to study the composition and physical properties of exoplanets. It is particularly effective at detecting molecular species in the infrared and measuring their abundances. Using the exoplanet WASP -18b as a test case, I will show how the precision of modern HRS is so exquisite that secondary effect become visible, such as atmospheric dynamics and thermal dissociation processes. I will also demonstrate the importance of accounting for such processes to avoid biases. Lastly, I will show how recent ERS data from JWST is in exquisite agreement with HRS data, despite relying on different spectral information. Giant planets such as WASP -18b are thus perfect testbed to tune techniques before diving into the study of smaller and cooler exoplanets.

This talk is part of the Astrophysics Talks Series series.

This talk is included in these lists:

• Aston Webb G33
• Astrophysics Talks Series
• Bham Talks
• What's on in Physics?

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