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SUMMARY:The Road to the Radius Valley - James Rogers
DTSTART:20241029T130000Z
DTEND:20241029T140000Z
UID:TALK223801@talks.cam.ac.uk
CONTACT:Dr Dolev Bashi
DESCRIPTION:The observed population of small\, close-in exoplanets is bifu
 rcated into two distinct types by the so-called ‘radius valley’. In th
 is talk\, I will discuss the atmospheric processes that may affect such pl
 anets 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' o
 n planetary evolution and infer the underlying population at birth. Finall
 y\, I will discuss a new study investigating the chemical imprints of atmo
 spheric escape on the interiors of super-Earths.
LOCATION:Ryle seminar room + ONLINE - Details to be sent by email
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