We present new evolutionary models for zero-metallicity stars, covering a large range of initial masses (from 0.8 to 100 M_⊙). Models are computed with overshooting from stellar cores and convective envelopes, and assuming mass-loss from the most massive stars. We discuss the main evolutionary features of these stars, and provide estimates of the amount of newly-synthesized elements dredged-up to the stellar surface, and possibly lost by stellar winds from the most massive stars. Full details of these models will be given in Marigo et al. (2000, in preparation).
Evolutionary models of zero metallicity stars
MARIGO, PAOLA;CHIOSI, CESARE;
2000
Abstract
We present new evolutionary models for zero-metallicity stars, covering a large range of initial masses (from 0.8 to 100 M_⊙). Models are computed with overshooting from stellar cores and convective envelopes, and assuming mass-loss from the most massive stars. We discuss the main evolutionary features of these stars, and provide estimates of the amount of newly-synthesized elements dredged-up to the stellar surface, and possibly lost by stellar winds from the most massive stars. Full details of these models will be given in Marigo et al. (2000, in preparation).
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