Separation of gas and dust in the winds of AGB stars. Issue Volume 14:Issue S343(2019) (August 2018)

• Record Type: Journal Article
• Authors: Mattsson, Lars; Sandin, Christer; Ventura, Paolo
• Editors: Kerschbaum, Franz; Groenewegen, Martin; Olofsson, Hans
• Is Part Of: Proceedings of the International Astronomical Union. Volume 14:Issue S343(2019)
• Page Start: 462
• Page End: 463
• Publication Date: 2018-08
• Subjects: stars: AGB and post-AGB, -- stars: winds, -- outflows, -- stars: atmospheres; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921318006294
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: We present first results from a project aiming at a better understanding of how gas and dust interact in dust-driven winds from Asymptotic Giant Branch (AGB) stars. We are at the final stage of developing a new parallelised radiation-hydrodynamics (RHD) code for AGB-wind modelling including a new generalised implementation of drift. We also discuss first results from high-resolution box simulations of forced turbulence intended to give quantitative "3D corrections" to dust-driven winds from AGB stars. It is argued that modelling of dust-driven winds of AGB stars is a problem that may need to be treated in a less holistic way, where some parts of the problem are treated separately in detailed simulations and are parameterised back into a less detailed (1D spherically symmetric) model describing the entire picture.