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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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