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Exoplanet Group Meeting - James Rogers

Artists rendering of two exoplanets around a red star
April 12, 2024
11:15 am - 12:15 pm
Hybrid: McPherson 4054 and Zoom

Title: Exoplanets and the Road to the Radius Gap

Speaker:

James Rogers (UCLA)

Abstract: 

The observed population of small, close-in exoplanets is bifurcated into two distinct types by the so-called ‘radius gap’. 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.

Events Filters:

Exoplanets
Seminar/Group Meeting