Mass Loss Evolution and the Formation of Detached Shells around TP-AGB Stars

Abstract

The origin of the so called 'detached shells' around AGB stars is not fully understood, but two common hypotheses state that these shells form either through the interaction of distinct wind phases or an eruptive mass loss associated with a He-shell flash. We present a model of the formation of detached shells around thermal pulse asymptotic giant branch (TP-AGB) stars, based on detailed modelling of mass loss and stellar evolution, leading to a combination of eruptive mass loss and wind interaction. The purpose of this paper is first of all to connect stellar evolution with wind and mass loss evolution and demonstrate its consistency with observations, but also to show how thin detached shells around TP-AGB stars can be formed. Previous attempts to link mass loss evolution with the formation of detached shells were based on approximate prescriptions for the mass loss and have not included detailed modelling of the wind formation as we do here. (abridged)

16 pages, 15 figures. Accepted for publication in Astronomy & Astrophysics

References in corpus (7)

• Properties of detached shells around carbon stars: Evidence of interacting winds
• Nuclear Reaction Rate Uncertainties and Astrophysical Modeling. II. Carbon Yields from Low-mass Giants
• Mass Loss Evolution and the Formation of Detached Shells around TP-AGB Stars
• Atmospheric dynamics in carbon-rich Miras. I. Model atmospheres and synthetic line profiles
• Detached shells as tracers of AGB-ISM bow shocks
• Atmospheric dynamics in carbon-rich Miras. II. Models meet observations
• Three-component modeling of C-rich AGB star winds III. Micro-physics of drift-dependent dust formation

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