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SUMMARY:Review - formation of terrestrial planets: the basic dynamical mod
 el - Kokubo\, E (NAOJ)
DTSTART:20090818T090000Z
DTEND:20090818T094000Z
UID:TALK19496@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:In the standard scenario for formation of planetary systems\, 
 a planetary system forms from a protoplanetary disk that consists of gas a
 nd dust. The formation scenario can be divided into three stages: (1) form
 ation of planetesimals from dust\, (2) formation of protoplanets from plan
 etesimals\, and (3) formation of planets from protoplanets. In stage (1)\,
  planetesimals form from dust through gravitational instability of a dust 
 layer or coagulation of dust grains. Planetesimals are small building bloc
 ks of solid planets. Planetesimals grow by mutual ollisions to protoplanet
 s or planetary embryos through runaway and oligarchic growth in stage (2).
  The final stage (3) depends on a type of planets. The final stage of terr
 estrial planet formation is giant impacts among protoplanets while sweepin
 g residual planetesimals. In the present talk\, I review the basic element
 ary processes of terrestrial planet formation\, showing some recent simula
 tions. 
LOCATION:Seminar Room 1 Newton Institute
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