Publication Abstracts

Chin and Stothers 1991

Chin, C.-W., and R.B. Stothers, 1991: Evolutionary sequences of stellar models of intermediate and high mass including convective core overshooting. Astrophys. J. Supp. Series, 77, 299-316, doi:10.1086/191605.

Stellar evolution with parameterized overshooting from the convective core has been studied for the stellar mass range M/M = 3-30 and for the initial chemical composition range Xe = 0.650-0.739 (hydrogen) and Ze = 0.021-0.044 (metals). Evolutionary sequences run from the zero-age main sequence to the end of core helium burning, but emphasis is placed here on the core helium-burning phase. Convective core overshooting during the previous main-sequence phase leads, in most cases, to a shortening of the blue loop on the H-R diagram that forms when helium is being depleted in the core. On the other hand, convective overshooting from the helium-burning core has the opposite effect. A larger initial metals abundance also tends to shorten the blue loop. In an extreme case the blue loop can be fully suppressed, but in a marginal case the normal trend can be reversed. The fraction of the core helium-burning lifetime that is spent in the blue phase is generally very sensitive to the physical input parameters. Detailed tables and plots of evolutionary tracks on the H-R diagram are provided.

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BibTeX Citation

@article{ch05200y,
  author={Chin, C.-W. and Stothers, R. B.},
  title={Evolutionary sequences of stellar models of intermediate and high mass including convective core overshooting},
  year={1991},
  journal={Astrophys. J. Supp. Series},
  volume={77},
  pages={299--316},
  doi={10.1086/191605},
}

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RIS Citation

TY  - JOUR
ID  - ch05200y
AU  - Chin, C.-W.
AU  - Stothers, R. B.
PY  - 1991
TI  - Evolutionary sequences of stellar models of intermediate and high mass including convective core overshooting
JA  - Astrophys. J. Supp. Series
VL  - 77
SP  - 299
EP  - 316
DO  - 10.1086/191605
ER  -

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