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SUMMARY:Gravitational Instability in Protostellar Discs - Cassandra Hall (
 Leicester)
DTSTART:20180301T113000Z
DTEND:20180301T123000Z
UID:TALK98104@talks.cam.ac.uk
CONTACT:Ed Gillen
DESCRIPTION:In the ALMA and SPHERE era of observational astronomy\, we are
  availed of a multitude of spatially resolved protostellar discs\, reveali
 ng a plethora of substructure such as warps\, rings and spirals. While it 
 is now becoming increasingly clear that ring-like morphology  at ~mm wavel
 engths is probably due to planet-disc interaction\, things remain more unc
 lear for spiral morphology. I begin with a general overview of accretion d
 iscs and gravitational instability\, before discussing the role gravitatio
 nal instability may play in forming these features. I conclude with recent
  results from global hydrodynamics simulations and population synthesis mo
 dels\, and what they may mean for GI planet formation theory.
LOCATION:Martin Ryle Seminar Room\, Kavli Institute
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