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SUMMARY:Collisional and dynamical evolution of debris discs - Wyatt\, M (C
 ambridge)
DTSTART:20090821T090000Z
DTEND:20090821T094000Z
UID:TALK19486@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:The observed properties of debris discs are seen to change wit
 h stellar age in a manner indicative of the discs' evolution. The majority
  of the observed trends agree with what would be expected from the steady 
 state collisional evolution of planetesimal belts formed in the protoplane
 tary disc. However\, there remains uncertainty as to how debris discs are 
 stirred\, and about the role of stochastic processes (due to either massiv
 e collisions or planetary system instability) in their evolution. More gen
 erally the study of debris discs offers a unique opportunity to probe how 
 planetesimals and planetary systems form and evolve. This talk will review
  our current understanding of the theory of debris disc evolution\, due to
  both collisional processes within the disc\, and due to the dynamics of i
 ts interaction with a (typically unseen) planetary system.
LOCATION:Seminar Room 1 Newton Institute
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