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SUMMARY:By Jove\, what a crowd! The Fates of Giant Planets in Cluster Envi
 ronments - Mika Kontiainen
DTSTART:20251203T131500Z
DTEND:20251203T134500Z
UID:TALK241588@talks.cam.ac.uk
CONTACT:Cristiano Longarini
DESCRIPTION:Connecting the present-day demographics of planetary systems t
 o their primordial populations requires an understanding of the dynamical 
 processing planets undergo after formation. Hot Jupiters – giant planets
  with orbital periods under ten days – offer a powerful probe of this pr
 ocessing\, given their likely origin at wider separations. While rare in t
 he Galactic field\, their high occurrence rate in the old open cluster M67
  suggests that interactions with nearby stars in dense stellar environment
 s play a role in converting giant planets on initially wide orbits into ho
 t Jupiters through high-eccentricity migration. In this talk\, I will pres
 ent an efficient approach for modelling the long-term evolution of planeta
 ry systems under the influence of stochastic perturbations from passing st
 ars in a cluster environment. I will discuss a selection of case studies l
 inking the observed demographics in M67 to the primordial population of Jo
 vian planets in the cluster.
LOCATION:Hoyle Lecture theatre + Zoom 
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