Evolution of Thermally Pulsing Asymptotic Giant Branch Stars III. Dust production at supersolar metallicities

Abstract

We extend the formalism presented in our recent calculations of dust ejecta from the Thermally Pulsing Asymptotic Giant Branch (TP-AGB) phase, to the case of super-solar metallicity stars. The TP-AGB evolutionary models are computed with the COLIBRI code. We adopt our preferred scheme for dust growth. For M-giants, we neglect chemisputtering by H${}_2$ molecules and, for C-stars we assume a homogeneous growth scheme which is primarily controlled by the carbon over oxygen excess. At super-solar metallicities, dust forms more efficiently and silicates tend to condense significantly closer to the photosphere (r~1.5 R${}_{\ast }$) - and thus at higher temperatures and densities - than at solar and sub-solar metallicities (r~2-3 R${}_{\ast }$). In such conditions, the hypothesis of thermal decoupling between gas and dust becomes questionable, while dust heating due to collisions plays an important role. The heating mechanism delays dust condensation to slightly outer regions in the circumstellar envelope. We find that the same mechanism is not significant at solar and sub-solar metallicities. The main dust products at super-solar metallicities are silicates. We calculate the total dust ejecta and dust-to-gas ejecta, for various values of the stellar initial masses and initial metallicities Z=0.04, 0.06. Merging these new calculations with those for lower metallicities it turns out that, contrary to what often assumed, the total dust-to-gas ejecta of intermediate-mass stars exhibit only a weak dependence on the initial metal content.

14 pages, 11 figures

References in corpus (13)

• Evolution of asymptotic giant branch stars I. Updated synthetic TP-AGB models and their basic calibration
• 350 Micron Dust Emission from High Redshift Quasars
• Evolution of interstellar dust and stardust in the solar neighbourhood
• Evolution of Thermally Pulsing Asymptotic Giant Branch Stars I. The COLIBRI Code
• Too little radiation pressure on dust in the winds of oxygen-rich AGB stars
• Rapid dust production in submillimeter galaxies at z>4?
• Evolution of Thermally Pulsing Asymptotic Giant Branch Stars II. Dust production at varying metallicity
• SPITZER IRS spectra of Virgo early type galaxies: detection of stellar silicate emission
• Molecules and dust production in the Magellanic Clouds
• Dust input from AGB stars in the Large Magellanic Cloud
• The mid-infrared colour-magnitude relation of early-type galaxies in the Coma cluster as measured by Spitzer-IRS
• Is there a metallicity ceiling to form carbon stars? - A novel technique reveals a scarcity of C stars in the inner M31 disk
• Dust formation in the winds of AGBs: the contribution at low metallicities

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