[Baps] 11/5 Planetary Lunch Seminar – Tiger Lu (Yale)

[Samantha Hasler]

Dear all,

We are excited to have Tiger Lu (Yale) visiting us next week to give the Planetary Lunch Seminar (details below) on 11/5. Tiger will be on campus from Monday afternoon to Wednesday afternoon. If you would like to meet with Tiger, please sign up here<https://docs.google.com/spreadsheets/d/1x5jPq-Vhc_BnRvyDJ_aUbhf0UvPsNe2SP-fkyLu2KzU/edit?usp=sharing>!

Best,
Sammy and the PLS Organizing Committee

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Location: 54-517
& Virtually: https://mit.zoom.us/j/97275591700  PW: 54100
Date: Tuesday November 5th
Time: 12:30–1:30 (please arrive a few minutes early to get lunch)

Speaker: Tiger Lu (Yale)

Title: Planets are not Points: Structure Evolution and Dynamical Evolution are Intertwined


Abstract: The two subfields of planetary structure evolution and planetary dynamics are two rich and complex fields that have advanced in lockstep, but independently of one another. I will discuss how accounting for minor interior structure evolution of a planet can have a profound impact on its dynamics and the architecture of the resulting system. Using full N-body simulations, I present a detailed case study of the HAT-P-11 system, which is a bizarre system with two misaligned, eccentric planets. I show that a combination of planet-planet scattering and Kozai-Lidov migration is capable of reproducing the present-day configuration of the system, but ONLY if these minute structure effects are accounted for.

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