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Paper: Dust in the Early Universe and the Contribution of AGB Stars
Volume: 497, Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time
Page: 369
Authors: Schneider, R.; Valiante, R.; Ventura, P.; dell'Agli, F.; di Criscienzo, M.
Abstract: We review the role of AGB stars in early dust enrichment in light of new theoretical dust yields for stars with mass 1–8 M and metallicity 3×10–4≥ Z ≥0.008, obtained with models that follow stellar evolution from the pre-main sequence phase until the almost complete ejection of the stellar mantle. The models have been shown to reproduce the measured dust production rates by carbon-rich and oxygen-rich AGB stars in the Small and Large Magellanic Clouds, as well as the observed colors of the so-called extreme stars in the LMC. We discuss the relative role of AGB stars and SNe in early dust enrichment and the impact of these two classes of stellar sources on the nature and composition of the first dust.
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