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Exoplanets and the Road to the Radius Valley

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  • UserJames Rogers (Institute of Astronomy, Cambridge)
  • ClockMonday 03 March 2025, 14:00-15:00
  • HouseMR14 DAMTP and online.

If you have a question about this talk, please contact Loren E. Held.

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 escape 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. The latter process is an extreme mass loss mechanism that is triggered by protoplanetary disc dispersal and may have lasting impacts on the population of small exoplanets.

This talk is part of the DAMTP Astrophysics Seminars series.

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