Understanding the Radius Valley as a by-product of Planet Formation: Observational Signatures of the Core-Powered Mass-Loss Mechanism
Akash Gupta - University of California, Los AngelesDec 22, 2020
Formation & evolution
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Talk presented at the Exoplanets III (2020) conference. Overview: Observations have revealed a lack of planets of sizes ~1.5-2.0 Earth radii, i.e. a radius ‘valley’ in the size distribution of small, short-period exoplanets. Typically, this observation has been attributed to atmospheric mass-loss due to photoevaporation. However, in recent work, Ginzburg et ...