Understanding the evolution and dust formation of carbon stars in the LMC with a look at the JWST

Abstract

Carbon stars have been and are extensively studied, given their complex internal structure and their peculiar chemical composition, which make them living laboratories to test stellar structure and evolution theories of evolved stars. They are the most relevant dust manufacturers, thus playing a crucial role in the evolution of galaxies. We study the dust mineralogy of circumstellar envelope (CE) of C-stars in the Large Magellanic Cloud (LMC), to achieve a better understanding of the dust formation process in the outflow of these objects. We investigate the expected distribution of C-stars in the observational planes built with the MIRI filters mounted onboard the James Webb Space Telescope (JWST), to select the best planes allowing an exhaustive characterisation of the stars. We compare the synthetic spectral energy distributions, obtained by the modelling of asymptotic giant branch stars and of the dust formation process in the wind, with the spectra of carbon stars in the LMC, taken with the Infrared Spectrograph (IRS) onboard the Spitzer Space Telescope. From the detailed comparison between synthetic modelling and observation we characterise the individual sources and derive the detailed mineralogy of the dust in the CE. We find that precipitation of MgS on SiC seeds is common to all non metal-poor carbon stars. Solid carbon is the dominant dust component, with percentages above $80\%$ in all cases; a percentage between $10\%$ and $20\%$ of carbon dust is under the form of graphite, the remaining being amorphous carbon. Regarding the observational planes based on the MIRI filters, the colour-magnitude ([F770W]-[F1800W], [F1800W]) plane allows the best understanding of the degree of obscuration of the stars, while the ([F1800W]-[F2550W], [F1800W]) diagram allows a better discrimination among stars of different metallicity.

arXiv comment28 pages, 18 figures 2 tables. Accepted for publication in A&A

References in corpus (109)

• Exploring the Milky Way stellar disk. A detailed elemental abundance study of 714 F and G dwarf stars in the Solar neighbourhood
• New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey
• Updated stellar yields from Asymptotic Giant Branch models
• Spitzer Survey of the Large Magellanic Cloud, Surveying the Agents of a Galaxy's Evolution (SAGE) I: Overview and Initial Results
• Formation and Dynamical Evolution of Multiple Stellar Generations in Globular Clusters
• The Dawes Review 2: Nucleosynthesis and stellar yields of low and intermediate-mass single stars
• Scattering by Interstellar Dust Grains: Optical and Ultraviolet
• The Mid-Infrared Instrument for the James Webb Space Telescope I: Introduction
• The Star Formation History of the Large Magellanic Cloud
• Chemodynamical evolution of the Milky Way disk I: The solar vicinity
• Predictions for self-pollution in globular cluster stars
• Evolution, nucleosynthesis and yields of low mass AGB stars
• Evolution, nucleosynthesis and yields of low mass AGB stars at different metallicities (II): the FRUITY database
• The Magellanic Clouds Photometric Survey: The Large Magellanic Cloud Stellar Catalog and Extinction Map
• Quantifying the uncertainties of chemical evolution studies. II. Stellar yields
• Evolution, nucleosynthesis and yields of AGB stars at different metallicities (III): intermediate mass models, revised low mass models and the ph-FRUITY interface
• Evolution of interstellar dust and stardust in the solar neighbourhood
• Stellar yields from metal-rich asymptotic giant branch models
• Yields of AGB and SAGB models with chemistry of low- and high-metallicity Globular Clusters
• Stellar sources of dust in the high redshift Universe
• Constraining the thermally-pulsing asymptotic giant branch phase with resolved stellar populations in the Small Magellanic Cloud
• Parameterising the third dredge-up in asymptotic giant branch stars
• Low-temperature gas opacity - AESOPUS: a versatile and quick computational tool
• Full computation of massive AGB evolution. I. The large impact of convection on nucleosynthesis
• Evolution of the Milky Way with radial motions of stars and gas I. The solar neighborhood and the thin and thick disk
• Asymptotic Giant Branch evolution at varying surface C/O ratio: effects of changes in molecular opacities
• Luminosities and mass-loss rates of SMC and LMC AGB stars and Red Supergiants
• Synthetic photometry for carbon rich giants, I. Hydrostatic dust-free models
• Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Large Magellanic Cloud
• The evolution of CNO isotopes: a new window on cosmic star-formation history and the stellar IMF in the age of ALMA
• New Asymptotic Giant Branch models for a range of metallicities
• Evolution of Thermally Pulsing Asymptotic Giant Branch Stars II. Dust production at varying metallicity
• The carrier of the "30" micron emission feature in evolved stars. A simple model using magnesium sulfide
• The Mid-Infrared Instrument for the James Webb Space Telescope, III: MIRIM, The MIRI Imager
• A Spitzer mid-infrared spectral survey of mass-losing carbon stars in the Large Magellanic Cloud
• Helium enrichment and Carbon-star Production in Metal-rich Populations
• Chemical element ratios of SDSS early-type galaxies
• The SAGE-Spec Spitzer Legacy program: The life-cycle of dust and gas in the Large Magellanic Cloud. Point source classification I
• Heavy-element yields and abundances of Asymptotic Giant Branch models with a Small Magellanic Cloud metallicity
• A Simple and Accurate Network for Hydrogen and Carbon Chemistry in the ISM
• Full computation of massive AGB evolution. II. The role of mass loss and cross-sections
• The dust production rate of AGB stars in the Magellanic Clouds
• The evolution of CNO isotopes: the impact of massive stellar rotators
• Carbon-rich dust past the asymptotic giant branch: aliphatics, aromatics, and fullerenes in the Magellanic Clouds
• AGB stars in the Magellanic Clouds. I. The C/M ratio
• Dust from AGBs: relevant factors and modelling uncertainties
• Dust driven mass loss from carbon stars as a function of stellar parameters - I. A grid of Solar-metallicity wind models
• The Mass-Loss Return From Evolved Stars to the LMC: Empirical Relations for Excess Emission at 8 and 24 μm
• The SAGE-Spec Spitzer Legacy program: The life-cycle of dust and gas in the Large Magellanic Cloud
• Carbon star formation as seen through the non-monotonic initial-final mass relation
• The mass-loss return from evolved stars to the Large Magellanic Cloud V. The GRAMS carbon-star model grid
• Luminosities and mass-loss rates of Local Group AGB stars and Red Supergiants
• Dust-driven Winds and Mass Loss of C-rich AGB Stars with subsolar Metallicities
• Spitzer observations of acetylene bands in carbon-rich AGB stars in the Large Magellanic Cloud
• The evolved-star dust budget of the Small Magellanic Cloud: the critical role of a few key players
• The stellar origin of 7Li - Do AGB stars contribute a substantial fraction of the local Galactic lithium abundance?
• Synthetic photometry for carbon-rich giants. IV. An extensive grid of dynamic atmosphere and wind models
• AGB stars in the LMC: evolution of dust in circumstellar envelopes
• Silicon carbide absorption features: dust formation in the outflows of extreme carbon stars
• The origin of s-process isotope heterogeneity in the solar protoplanetary disk
• Gas and dust from solar metallicity AGB stars
• Evolution of Thermally Pulsing Asymptotic Giant Branch Stars III. Dust production at supersolar metallicities
• Asymptotic Giant Branch stars at low metallicity: the challenging interplay between mass loss and molecular opacities
• Intense Mass Loss from C-rich AGB Stars at low Metallicity?
• The effect of stellar migration on Galactic chemical evolution: a heuristic approach
• Discovery of Extreme Carbon Stars in the Large Magellanic Cloud
• Where does galactic dust come from?
• AGB stars in the SMC: evolution and dust properties based on Spitzer observations
• The impact of updated Zr neutron-capture cross sections and new asymptotic giant branch models on our understanding of the s process and the origin of stardust
• Is there a metallicity ceiling to form carbon stars? - A novel technique reveals a scarcity of C stars in the inner M31 disk
• Evolution and Nucleosynthesis of AGB stars in Three Magellanic Cloud Clusters
• The gas, metal and dust evolution in low-metallicity local and high-redshift galaxies
• The inner two degrees of the Milky Way. Evidence of a chemical difference between the Galactic Center and the surrounding inner bulge stellar populations
• Dust formation in the winds of AGBs: the contribution at low metallicities
• Constraining dust properties in Circumstellar Envelopes of C-stars in the Small Magellanic Cloud: optical constants and grain size of Carbon dust
• The infrared spectral properties of Magellanic carbon stars
• The mass-loss, expansion velocities and dust production rates of carbon stars in the Magellanic Clouds
• The dust content of the most metal-poor star-forming galaxies
• Estimating the dust production rate of carbon stars in the Small Magellanic Cloud
• The Large Magellanic Cloud as a laboratory for Hot Bottom Burning in massive Asymptotic Giant Branch stars
• Do meteoritic silicon carbide grains originate from asymptotic giant branch stars of super-solar metallicity?
• Detailed abundances in the Galactic center: Evidence of a metal-rich alpha-enhanced stellar population
• The VMC survey III. Mass-loss rates and luminosities of LMC AGB stars
• Carbon star wind models at solar and sub-solar metallicities: a comparative study. I. Mass loss and the properties of dust-driven winds
• Modelling the alumina abundance of oxygen-rich evolved stars in the Large Magellanic Cloud
• On the alumina dust production in the winds of O-rich Asymptotic Giant Branch stars
• Dust formation in winds of long-period variables. V. The influence of micro-physical dust properties in carbon stars
• Evolution and chemical yields of AGB stars: effects of low-temperature opacities
• Studying the evolution of AGB stars in the Gaia epoch
• Dissecting the Spitzer color-magnitude diagrams of extreme LMC AGB stars
• The cosmic dust rate across the Universe
• Dust driven mass loss from carbon stars as function of stellar parameters - II. Effects of grain size on wind properties
• Evolved stars in the Local Group galaxies - II. AGB, RSG stars and dust production in IC10
• Decoding the message from meteoritic stardust silicon carbide grains
• On the nature of the most obscured C-rich AGB stars in the Magellanic Clouds
• Modeling lithium rich carbon stars in the Large Magellanic Cloud: an independent distance indicator ?
• Evolved stars in the Local Group galaxies. I. AGB evolution and dust production in IC 1613
• Probing the dusty stellar populations of the Local Volume Galaxies with JWST/MIRI
• Evolved stars in the Local Group galaxies - III. AGB and RSG stars in Sextans A
• Characterizing the Population of Bright Infrared Sources in the Small Magellanic Cloud
• The chemistry of stars in the bar of the Milky Way
• Three-component modelling of C-rich AGB star winds V. Effects of frequency-dependent radiative transfer including drift
• Probing O-enrichment in C-rich dust planetary nebulae
• Optical properties of amorphous carbon dust around C-stars: new constraints from 2MASS and Gaia observations
• The adventure of carbon stars - Observations and modelling of a set of C-rich AGB stars
• Discovery of stars surrounded by iron dust in the LMC
• Are extreme AGB stars post-common envelope binaries?
• Properties of dust in the detached shells around U Ant, DR Ser, and V644 Sco
• 30-micron sources in galaxies with different metallicities

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• New Post-AGB star models as tools to understand AGB evolution and nucleosynthesis
• Understanding dust production and mass loss on the AGB phase using post-AGB stars in the Magellanic Clouds
• The intense production of silicates during the final AGB phases of intermediate mass stars
• A study of carbon-rich post-AGB stars in the Milky Way to understand the production of carbonaceous dust from evolved stars
• Accurate sticking coefficient calculation for carbonaceous dust growth through accretion and desorption in astrophysical environments
• Planetary Nebulae of the Large Magellanic Cloud II: the connection with the progenitors' properties
• High-temperature dust formation in carbon-rich astrophysical environments
• Nuclear astrophysics
• The fate of the progenitors of luminous red novae: Infrared detection of LRNe years after the outburst
• Dust Production around Carbon-Rich Stars: The Role of Metallicity