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SUMMARY:Eddington Lecture: The turbulent environment of planet formation -
  Phil Armitage (Colorado)
DTSTART:20130307T163000Z
DTEND:20130307T173000Z
UID:TALK40796@talks.cam.ac.uk
CONTACT:Michele Trenti
DESCRIPTION:Efforts to model the formation of extrasolar planetary systems
  have faced an obstacle in the poorly known properties and evolutionary hi
 stories of protoplanetary disks. I will review work to model protoplantary
  disks from first principles\, and describe how ALMA observations may be a
 ble to directly test theory in the outer disk. Our simulations suggest tha
 t disk turbulence and accretion in young stars retains a critical memory o
 f the magnetic fields present when the star formed. I will discuss how the
  turbulent environment of planet formation affects major phases of planet 
 formation and migration\, and argue that a final stage of violent planetar
 y dynamics largely determines what we observe in extrasolar planetary syst
 ems.
LOCATION:Sackler Lecture Theatre\, IoA (tea at 4:00 pm)
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