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Tuesday 29 October 2024, 13:00-14:00
The Road to the Radius Valley
- 👤 Speaker: James Rogers
- 📅 Date & Time: Tuesday 29 October 2024, 13:00 - 14:00
- 📍 Venue: Ryle seminar room + ONLINE - Details to be sent by email
Questions? Contact
Dr Dolev Bashi
Abstract
The observed population of small, close-in exoplanets is bifurcated into two distinct types by the so-called ‘radius valley’. In this talk, I will discuss the atmospheric processes that may affect such planets and finally lead to the radius gap being carved out, specifically X-ray/EUV photoevaporation, core-powered mass loss, and boil-off. I will show how one can exploit these mass-loss processes to ‘rewind the clock’ on planetary evolution and infer the underlying population at birth. Finally, I will discuss a new study investigating the chemical imprints of atmospheric escape on the interiors of super-Earths.
Series This talk is part of the Exoplanet Seminars series.
Included in Lists
- Cambridge Astronomy Talks
- Combined External Astrophysics Talks DAMTP
- Cosmology, Astrophysics and General Relativity
- Exoplanet Seminars
- Institute of Astronomy Talk Lists
- LCLU Departmental Talks
- Ryle seminar room + ONLINE - Details to be sent by email
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