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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-6471
DTSTART:20211008T203000Z
DTEND:20211008T213000Z
DTSTAMP:20260414T191921Z
LAST-MODIFIED:20211006T230851Z
LOCATION:2103 Chamberlin Hall
SUMMARY:Glimpsing the Compositions of Sub-Neptune-Size Worlds\, Physic
 s Department Colloquium\, Leslie Rogers\, University of Chicago
DESCRIPTION:Sub-Neptune and super-Earth-size planets are a new categor
 y of astrophysical objects. Though absent from the Solar System\, exop
 lanet 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 envelope
 s\, and water-worlds with several tens of percent water by mass. In th
 is talk\, I will present recent results from my group aimed at underst
 anding the nature and origin of these enigmatic sub-Neptune-size world
 s and disentangling the relative contributions from various compositio
 nal scenarios to the observed population of planets.
URL:https://www.physics.wisc.edu/events/?id=6471
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