Physics Department Colloquia

<< Summer 2021 Fall 2021 Spring 2022 >>
Subscribe your calendar or receive email announcements of events

Events During the Week of October 3rd through October 10th, 2021

Monday, October 4th, 2021

No events scheduled

Tuesday, October 5th, 2021

No events scheduled

Wednesday, October 6th, 2021

No events scheduled

Thursday, October 7th, 2021

No events scheduled

Friday, October 8th, 2021

Glimpsing the Compositions of Sub-Neptune-Size Worlds
Time: 3:30 pm - 4:30 pm
Place: 2103 Chamberlin Hall
Speaker: Leslie Rogers, University of Chicago
Abstract: Sub-Neptune and super-Earth-size planets are a new category of astrophysical objects. Though absent from the Solar System, exoplanet surveys have revealed that they are a dominant outcome of planet formation found in abundance around other stars. The nature of these planets is not well understood. In the sub-Neptune size range a large variety of planet bulk compositions are a priori possible, including terrestrial super-Earths, mini-Neptunes with hydrogen-helium envelopes, and water-worlds with several tens of percent water by mass. In this talk, I will present recent results from my group aimed at understanding the nature and origin of these enigmatic sub-Neptune-size worlds and disentangling the relative contributions from various compositional scenarios to the observed population of planets.
Host: Ellen Zweibel
Add this event to your calendar