Predictions for Self-Pollution in Globular Cluster Stars

  title={Predictions for Self-Pollution in Globular Cluster Stars},
  author={P. Ventura and F. D'antona and I. Mazzitelli and R. Gratton},
  journal={The Astrophysical Journal},
  • P. Ventura, F. D'antona, +1 author R. Gratton
  • Published 2001
  • Physics
  • The Astrophysical Journal
  • Fully evolutionary models have been built to follow the phases of asymptotic giant branch evolution with mass loss for metal mass fractions from Z = 2 ? 10-4 to Z = 4 ? 10-3. The hot bottom burning at the base of the convective envelope is followed by fully coupled nuclear burning and noninstantaneous mixing. The models also show the occurrence of a spontaneous (i.e., not induced by overshooting) third dredge-up. For the first time, we find that temperatures close to or even larger than 108 K… CONTINUE READING
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