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SUMMARY:Planet Migration in Dusty Protoplanetary Disks - Martin Pessah [NB
 I Copenhagen]
DTSTART:20250529T130000Z
DTEND:20250529T140000Z
UID:TALK231367@talks.cam.ac.uk
CONTACT:Loren E. Held
DESCRIPTION:Fast inward migration of planetary cores embedded in gaseous d
 isks is a common problem in the current planet formation paradigm. Even th
 ough dust is ubiquitous in protoplanetary disks\, its dynamical role in th
 e migration history of planetary embryos has not been considered until rec
 ently. In this talk\, I will show that a planetesimal embedded in a dusty 
 disk leads to an asymmetric dust-density distribution that can exert a net
  torque under conditions relevant to planetary embryos up to several Earth
  masses. Building on the results or a large suite of numerical simulations
  for measuring this dust torque under a wide range of conditions\, I will 
 present the first study showing that dust torques can have a significant i
 mpact on the migration and formation history of planetary embryos.
LOCATION:MR14 DAMTP and online
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