[AAA] Seminario Virtual Room DAS - UChile: Exoplanet Demographics: Population Statistics of Hot Super-Earths and Cold Jupiters - Dr. Gijs Mulder (UAI)

[Rene A. Mendez]

Estimado/as,

Les recuerdo que este jueves 02 de Diciembre a las 12:15 hrs. tendremos 
seminario en el Departamento de Astronomía de la Universidad de Chile.

*Speaker*: Gijs Mulder
Universidad Adolfo Ibañez

*Title*: Exoplanet Demographics: Population Statistics of Hot 
Super-Earths and Cold Jupiters

*Abstract*: 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.

Virtual room: 
https://uchile.zoom.us/j/89046359858?pwd=dURFTjIzbXU0NkNpdGFZb0sxRVZJdz09

Rene A. Mendez
Seminar Coordinator
DAS/UChile - rmendez en uchile.cl


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-- 
Saludos,

Alejandro Leal Obreque
Departamento de Astronomía
FCFM - UNIVERSIDAD DE CHILE
22 977 1154
aleal en das.uchile.cl
www.das.uchile.cl <http://www.das.uchile.cl/>


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