Evolutionary models of zero metallicity stars

Details Evolutionary models of zero metallicity stars Evolutionary models of zero metallicity stars

1999-11-05

arxiv.org/abs/astro-ph/9911087v1

Astronomy and Astrophysics

Astrophysics

2 pages, to appear in the proceedings of the MPA/ESO Workshop "The first stars"

Scientific paper

10.1007/10719504_19

We present new evolutionary models for zero-metallicity stars, covering a large range of initial masses (from 0.8 to 100 M_sun). 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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