CH subgiants and the mixing hypothesis

Details CH subgiants and the mixing hypothesis CH subgiants and the mixing hypothesis

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....92..163s&link_type=abstract

Astronomy and Astrophysics, vol. 92, no. 1-2, Dec. 1980, p. 163-166.

Astronomy and Astrophysics

Astrophysics

27

Carbon Stars, Giant Stars, Hydrogen, Stellar Evolution, Stellar Structure, Abundance, Chemical Composition, Stellar Luminosity, Stellar Mass, Stellar Models

Scientific paper

Some consequences of internal mixing at the helium core flash have been investigated for low mass, Population II stars. On the basis of the luminosity criterion, it seems unlikely that the internal mixing hypothesis can explain the CH subgiants, though it cannot be ruled out for the CH giants or other chemically peculiar giants. A binary origin for the CH subgiants is proposed.

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