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SUMMARY:Constraining Stability Timescales in FGK Dwarf Planetary Systems w
 ith Kepler Observations - Christopher Lam (U of Florida)
DTSTART:20230221T130000Z
DTEND:20230221T140000Z
UID:TALK197593@talks.cam.ac.uk
CONTACT:Dr Emily Sandford
DESCRIPTION:The transit yields of the Kepler mission have provided constra
 ints on the demographics of exoplanets around FGK dwarfs\, including the n
 umber of such systems with multiple transiting planets. Transit multiplici
 ties\, in turn\, provide insights into the orbital architectures of these 
 systems. Folding in stellar age information from isochrones fit to stars f
 rom Gaia enables a study of the timescales along which these observed arch
 itectures may have been shaped. By forward modeling planetary systems arou
 nd FGK dwarfs against the Kepler transit multiplicity around such stars\, 
 we begin to rule out and favor certain timescales for the dynamical evolut
 ion of exoplanet orbits around Sun-like stars – and the dynamical proces
 ses that occur along those timescales. Our findings provide an upper runti
 me bound on expensive N-body simulations for orbital evolution\, as well a
 s a lower bound for the time at which life might emerge in systems around 
 stars similar to the Sun.
LOCATION:Ryle seminar room + ONLINE - Details to be sent by email
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