ACES - From 3D RHD Models of AGB Stars and Dusty Winds to Synthetic Observables

Learn about advanced 3D radiation-hydrodynamical modeling of Asymptotic Giant Branch (AGB) stars in this 22-minute research presentation from Uppsala University. Explore the development of tools that translate 3D RHD simulations of a 1 M⊙ oxygen-rich AGB star and its dust-driven winds into radiative transfer computations using RADMC-3D to generate synthetic observables. Discover how non-spherical stellar features and dusty envelopes are modeled, with particular attention to their effects on images and spectral energy distributions in visual and near-infrared wavelengths. Examine the implementation of Mg2SiO4 opacity data, spatially dependent grain sizes, and the preservation of asymmetric stellar shapes through specialized dust species modeling. Understand the results showing substantial dust formation at 3.4 au, giant convection cells on the stellar surface, and simulated VLTI observations at 200 pc distance, revealing both thermal dust emission and resolved stellar surface features.