NASA NTRS · 19890030160
Theoretical horizontal-branch evolution
Abstract
The general features of the theoretical evolution of canonical horizontal-branch (HB) stars are briefly reviewed with specific emphasis on the track morphology in the HR diagram and the determination of the globular cluster helium abundance. The observational evidence for the occurrence of semiconvection is discussed together with some remaining theoretical uncertainty.
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Sweigart, Allen V.. 1987-01-01. Theoretical horizontal-branch evolution. https://ntrs.nasa.gov/citations/19890030160
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