Impact of HI cooling and study of accretion disks in AGB wind-companion smoothed-particle-hydrodynamic simulations
J. Malfait, L. Siess, M. Esseldeurs, F. De Ceuster, A. de Koter, L. Decin
submitted to A&A 2024
Online material
3 movies are provided to help visualize and understand the complex flow between a mass loosing AGB star and its solar mass companion
setup : v = 10km/s, e = 0.5
Evolution of the density distribution in the corotating orbital plane of model v10e50. This movie shows how the structures around the companion in this eccentric binary vary over each orbital period, and how the bow shock interacts and collides with other high density structures.
setup : v = 5 km/s, e = 0.5
Evolution of the density distribution in the corotating orbital plane of model v05e50 during the final 4 orbital periods of the simulation. This movie focuses on the accretion disk around the companion, and reveals how the accretion disk shape varies throughout one orbital period due to the complex interplay between the phase-dependent wind-companion interaction strength and the interaction of the accretion disk with surrounding high density structures.
setup : v = 20km/s, e = 0.5
Evolution of the density distribution in the corotating orbital plane of model v20e50 during the final 4 orbital periods of the simulation. This movie focuses on the accretion disk around the companion, and shows how the surrounding structure varies from a 2-edged spiral to bow shock within each orbital period.