The evolution of DARWIN: current status of wind models for AGB stars

Abstract

The slow, dense winds observed in evolved asymptotic giant branch (AGB) stars are usually attributed to a combination of dust formation in the dynamical inner atmosphere and momentum transfer from stellar photons interacting with the newly formed dust particles. Wind models calculated with the DARWIN code, using this mass-loss scenario, have successfully produced outflows with dynamical and photometric properties compatible with observations, for both C-type and M-type AGB stars. Presented here is an overview of the DARWIN models currently available and what output these models produce, as well as future plans.

10 pages, 8 figures, conference proceedings from IAU Symposium no. 343, 2018: Why Galaxies Care about AGB Stars: A Continuing Challenge through Cosmic Time

References in corpus (14)

• The Dawes Review 2: Nucleosynthesis and stellar yields of low and intermediate-mass single stars
• Constraining the thermally-pulsing asymptotic giant branch phase with resolved stellar populations in the Small Magellanic Cloud
• Too little radiation pressure on dust in the winds of oxygen-rich AGB stars
• A close halo of large transparent grains around extreme red giant stars
• AGB Stars in the Fornax Dwarf Spheroidal Galaxy
• Exploring wind-driving dust species in cool luminous giants I. Basic criteria and dynamical models of M-type AGB stars
• Synthetic photometry for carbon-rich giants. IV. An extensive grid of dynamic atmosphere and wind models
• Exploring wind-driving dust species in cool luminous giants III. Wind models for M-type AGB stars: dynamic and photometric properties
• Vigorous atmospheric motion in the red supergiant star Antares
• Carbon star wind models at solar and sub-solar metallicities: a comparative study. I. Mass loss and the properties of dust-driven winds
• The wind of the M-type AGB star RT Virginis probed by VLTI/MIDI
• Pulsation-induced atmospheric dynamics in M-type AGB stars. Effects on wind properties, photometric variations and near-IR CO line profiles
• Modelling polarized light from dust shells surrounding asymptotic giant branch stars
• Tomography of silicate dust around M-type AGB stars I. Diagnostics based on dynamical models

Cited by in corpus (30)

• FIRE-3: Updated Stellar Evolution Models, Yields, & Microphysics and Fitting Functions for Applications in Galaxy Simulations
• Chemical equilibrium in AGB atmospheres: Successes, failures, and prospects for small molecules, clusters, and condensates
• Carbon star formation as seen through the non-monotonic initial-final mass relation
• The formation of ultra-massive carbon-oxygen core white dwarfs and their evolutionary and pulsational properties
• Global 3D radiation-hydrodynamical models of AGB stars with dust-driven winds
• ATOMIUM: ALMA tracing the origins of molecules in dust forming oxygen rich M-type stars: Motivation, sample, calibration, and initial results
• A Fresh Look at AGB stars in Galactic Open Clusters with Gaia: Impact on Stellar Models and the Initial-Final Mass Relation
• Properties of self-excited pulsations in 3D simulations of AGB stars and red supergiants
• ATOMIUM: Probing the inner wind of evolved O-rich stars with new, highly excited H${}_2$O and OH lines
• Asteroseismology of luminous red giants with Kepler. II. Dependence of mass loss on pulsations and radiation
• 3D simulations of AGB stellar winds -- I. Steady winds and dust formation
• The Isaac Newton Telescope monitoring survey of Local Group dwarf galaxies -- IV. The star formation history of Andromeda VII derived from long period variable stars
• The intense production of silicates during the final AGB phases of intermediate mass stars
• Dust grain size evolution in local galaxies: a comparison between observations and simulations
• DEATHSTAR: Nearby AGB stars with the Atacama Compact Array II. CO envelope sizes and asymmetries: The S-type stars
• Dissecting the central regions of OH 231.8 + 4.2 with ALMA: a salty rotating disk at the base of a young bipolar outflow
• SOFIA/HAWC+ observations of the Crab Nebula: dust properties from polarised emission
• Submillimetre water masers at 437, 439, 471, and 474 GHz towards evolved stars. APEX observations and radiative transfer modelling
• Contemporaneous high-angular-resolution imaging of the AGB star W Hya in vibrationally excited H2O lines and visible polarized light with ALMA and VLT/SPHERE-ZIMPOL
• Relation of Observable Stellar Parameters to Mass-Loss Rate of AGB Stars in the LMC
• The K-band highest-resolution images of the Mira star R Car with GRAVITY-VLTI
• Three-component modelling of O-rich AGB star winds I. Effects of drift using forsterite
• Infrared variable stars in the compact elliptical galaxy M32
• Long-Term Near-Infrared Brightening of Non-Variable OH/IR Stars
• High-angular-resolution ALMA imaging of the inhomogeneous dynamical atmosphere of the asymptotic giant branch star W Hya
• Extended view on the dust shells around two carbon stars
• Water vapour masers in long-period variable stars III. Mira variables U Her and RR Aql
• The Nearby Evolved Stars Survey III: First data release of JCMT CO-line observations
• Dynamical Mass Loss at the End of TP-AGB stars
• VLTI-GRAVITY measurements of cool evolved stars: II. Pulsation properties and mass-loss process of the Mira star R Car and the red supergiant VX Sgr