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SUMMARY:Planet formation in binary systems - Philippe Thebault (Observatoi
 re de Paris)
DTSTART:20100308T160000Z
DTEND:20100308T170000Z
UID:TALK22911@talks.cam.ac.uk
CONTACT:Laurène Jouve
DESCRIPTION:About 20 percent of all detected exoplanets inhabit multiple s
 tar systems and several observational campaigns are now actively searching
  for planets in binary stars. This has fueled a renewed interest in studie
 s of planet formation in multiple star systems. Some issues\, such as the 
 long term stability of planets in binaries or how binarity affects the las
 t stages of the planet formation process (from embryos to planets) are now
  relatively well understood. However\, other issues are still actively deb
 ated\, in particular regarding the crucial early stage leading from km-siz
 ed planetesimals to embryos. The main question is here if the coupled effe
 ct of gas drag\, companion star perturbations and mutual collisions favour
 s\, hinders or simply does not affect planetesimal accretion. I will revie
 w the latest studies on this complex problem\, with a specific focus on 2 
 individual systems: Gamma Cephei\, the most famous binary system with a de
 tected exoplanet\, and alpha Centauri\, the most famous binary system that
  *might* harbour a terrestrial planet.
LOCATION:MR14\, DAMTP\, Pav. F
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