The Road to the Radius Valley

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• James Rogers
• Tuesday 29 October 2024, 13:00-14:00
• Ryle seminar room + ONLINE - Details to be sent by email.

If you have a question about this talk, please contact Dr Dolev Bashi.

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.

This talk is part of the Exoplanet Seminars series.

This talk is included in these 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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