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Explore groundbreaking research on tidal dissipation in cool evolved stars through this physics lecture that investigates star-planet and star-star system interactions. Delve into fundamental mechanisms driving orbital and rotational evolution, addressing discrepancies between current population-synthesis models and observed period/eccentricity distributions of post-AGB stars. Learn about pioneering ab-initio calculations of tidal dissipation strengths throughout the evolution of low and intermediate mass stars, examining both equilibrium tide and previously unaccounted dynamical tide. Understand how these parameters are crucial for predicting binary star evolution and developing new insights into orbital evolution during evolved phases. The presentation offers valuable perspectives for astronomers and astrophysicists studying stellar evolution and binary star systems.
