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SUMMARY:Unveiling the role of dust on planetary migration - Pablo Benítez
 -Llambay (NBI Copenhagen)
DTSTART:20190304T140000Z
DTEND:20190304T150000Z
UID:TALK115669@talks.cam.ac.uk
CONTACT:Cleo Loi
DESCRIPTION:Gas and dust are essential components of protoplanetary disks\
 , actively participating in the formation of planetesimals and planetary b
 odies. The gravity of planetary embryos perturbs the disk which\, in turn\
 , reacts producing gravitational feedback onto the nascent planets. This f
 eedback has the potential of changing the planets’ orbits\, leading to a
  process known as planetary migration. The characterization of this migrat
 ion requires detailed calculations of the global disk structure and detail
 ed physical models. For example\, the headwind exerted by a sub-Keplerian 
 gas flow onto dust particles produces a mutual radial drift which\, combin
 ed with planet torques\, may have a significant effect on the resulting lo
 cal mass distribution of the disk. This dust torque could -- depending on 
 the dust-to-gas mass ratio\, the particle-size distribution\, and the mass
  of the embryos -- modify the orbit of the nascent planets.\nIn this talk\
 , I will present recent results related to torques induced by scattered pe
 bble-flows in protoplanetary disks\, obtained with the new multifluid vers
 ion of the publicly available code FARGO3D.
LOCATION:MR14\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
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