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SUMMARY:Investigating the composition of planets formed by Gravitational I
 nstability - Maggie Celeste Goulden (University of Cambridge)
DTSTART:20211124T131500Z
DTEND:20211124T134500Z
UID:TALK166453@talks.cam.ac.uk
CONTACT:Hannah Uebler
DESCRIPTION:The bulk metallicity of a planet is determined by the composit
 ion of gas and dust in the protoplanetary disc from which it forms\, and b
 y the ratio of dust to gas accreted during formation. In the Gravitational
  Instability (GI) theory of planet formation\, regions of the disc collaps
 e into fragments. It is generally assumed that due to this large-scale fra
 gmentation GI produces planets with the same dust to gas ratio as the disc
  -- resulting in a metallicity that matches that of the host star. Howeve
 r\, there are mechanisms that can enrich a planet forming via GI with dust
  or metal-rich gas\, potentially challenging this assumption. By making u
 se of global\, 3D hydrodynamic simulations of a fragmenting protoplanetary
  disc\, we plan to determine if these mechanisms are sufficient for GI-for
 med planets to have significantly superstellar metallicity.
LOCATION:The Hoyle Lecture Theatre (sign-up needed) + Zoom - Details will 
 be sent by email
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