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UID:seminar-14260@epss.ucla.edu
DTSTAMP:20261005T104352Z
DTSTART:20260115T120000Z
DTEND:20260115T010000Z
SUMMARY:Dynamics and Origins of Mean-Motion Resonances in Extrasolar Planetary System
LOCATION:3853 Slichter Hall
DESCRIPTION:Date: 1/15/2026
Time: 12:00 – 1:00 pm
Location: 3853 Slichter Hall
Presented By: Prof. Man Hoi Lee - University of Hong Kong
Abstract:
In our Solar System\, there are numerous mean-motion resonances for the minor bodies and satellites\, but there are no mean-motion resonances between the planets. The first mean-motion resonance in an extrasolar planetary system - the 2:1 resonance between two Jupiter-mass planets around the star GJ 876 - was discovered in 2001. Since then\, an increasing number of pairs of planets in or near mean-motion resonances and resonant chains of three or more planets have been detected. I will discuss the dynamics of these systems and the constraints that they provide on the formation and dynamical evolution of planets. Topics will include high-order mean-motion resonances in the HD 202206 and nu Ophiuchi systems and the formation of resonant chains near the inner edge of protoplanetary disks.
URL:https://epss.ucla.edu/dynamics-and-origins-of-mean-motion-resonances-in-extrasolar-planetary-system/
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