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Low-mass evolution from he ignition to beyond the horizontal branch

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Abstract

The evolution of an 0.6 m⊙ stellar model during core helium burning is presented. Following the off-center ignition of helium in the “core” flash, the star remains on the red giant branch for > 106 years, undergoing twelve additional flashes. After leaving the giant branch, the star evolves on the horizontal branch for 8.15×107 years before re turning to the giant branch and undergoing strong helium-shell flashes. The implications for horizontal branch and RR Lyrae stars are discussed.

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Authors and Affiliations

  1. Department of Astronomy, Haverford College, 19041, Haverford, PA

    Keith Despain

  2. Theoretical Division, Los Alamos Scientific Laboratory, University of California, 87545, Los Alamos, NM

    Keith Despain

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  1. Keith Despain
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Despain, K. Low-mass evolution from he ignition to beyond the horizontal branch. Space Sci Rev 27, 483–489 (1980). https://doi.org/10.1007/BF00168339

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  • DOI: https://doi.org/10.1007/BF00168339

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