Exoplanets are a diverse population reflecting the range in possible outcomes of the planet formation process. Yet there are also patterns in the observed properties of planets and planetary systems that reveal common formation pathways.
In this talk I will paint a consistent picture of exoplanet demographics consisting of two different planet populations: hot super-Earths and cold Jupiters. These exoplanet populations are constrained by transit, radial velocity, direct imaging, and micro-lensing surveys. They may also be reflected in the observed structures of protoplanetary disks.
One puzzling observation is the high occurrence rate of super-earths around low-mass M dwarfs compared to sun-like stars. Instead a reduced planet formation efficiency would be expected based on low protoplanetary disk masses. I will show using a pebble accretion model how the growth of cold Jupiters can affect the growth of hot super-earths, and explain this unexpected trend with stellar mass.
Rene A. Mendez
DAS/UChile – email@example.com