BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Evolution of eccentricity and orbital inclination caused by planet
 -disc interactions - Jean Teyssandier (IAP/Oxford/DAMTP)
DTSTART:20141014T120000Z
DTEND:20141014T130000Z
UID:TALK52931@talks.cam.ac.uk
CONTACT:Adrian Barker
DESCRIPTION:Extrasolar planets exhibit a large variety of orbital properti
 es\, from\npacked\, coplanar\, multiple systems on circular orbits\, to ec
 centric and\nmisaligned hot Jupiters. Such variety reflects the diversity 
 of dynamical\ninteractions that can take place within planetary systems\, 
 and which start soon after their birth in a protoplanetary disc. I will pr
 esent different aspect of planet-disc interactions that can cause large va
 riations of eccentricity and inclination in the planetary orbits. First\, 
 we study the interaction between a planet on an inclined orbit and a disc\
 , and show that realignment of the planetary orbit strongly depends on the
  mass of the planet. Furthermore\, Kozai cycles raised by the disc's gravi
 tational potential can strongly excite the planet's eccentricity and incli
 nation. Secondly\, we study the resonant migration of two planets in a dis
 c. We explore\, analytically and numerically\, the criterion for the onset
  of an inclination-type resonance. We show that it depends mainly on the r
 atio between the eccentricity damping timescale and the migration timescal
 e.
LOCATION:MR14\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
END:VEVENT
END:VCALENDAR