Multi-mode Pulsations in AGB Stars: Insights from 3D Models

Explore groundbreaking research on 3D "star-in-a-box" simulations of Asymptotic Giant Branch (AGB) stars in this 19-minute research presentation. Delve into the expansion of model grids with varied stellar parameters and refined mass distributions to understand the transition between multi-mode, low-amplitude pulsations at the end of the red giant phase to single-mode, large-amplitude Mira-like pulsations in advanced AGB stars. Learn how the CO5BOLD radiation-hydrodynamics code enables the study of complex interactions between convection and pulsations within stellar interiors, providing crucial insights into physical transformations of stellar atmospheres during different evolutionary phases.