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SUMMARY:Where does the gas in exoKuiper belts come from? - Sebastián Mari
 no
DTSTART:20221123T131500Z
DTEND:20221123T140500Z
UID:TALK193049@talks.cam.ac.uk
CONTACT:107642
DESCRIPTION:Minor bodies similar to asteroids and comets are a ubiquitous 
 component of planetary systems\, typically found in belts analogous to the
  Asteroid and Kuiper belt in the Solar System. Although we cannot detect t
 hese km-sized bodies individually\, mutual collisions produce high dust le
 vels that are readily detectable in cold belts around 30% of nearby stars.
  Over the last 5 years\, it has become clear that many of these cold exoKu
 iper belts contain vast amounts of gas of unknown origin. In this seminar\
 , I will present the recent efforts to understand the origin of this gas a
 nd how it could originate from volatile-rich bodies (i.e. exocomets) in ex
 oKuiper belts. These long-lived and gas-rich circumstellar disks could hav
 e strong implications for the formation timescales and atmospheres of exop
 lanets.
LOCATION:The Hoyle Lecture Theatre + Zoom 
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