Convective penetrations and observable consequences of helium shell flashes in 3 and 6 solar-mass red supergiants

Details Convective penetrations and observable consequences of helium shell flashes in 3 and 6 solar-mass red supergiants Convective penetrations and observable consequences of helium shell flashes in 3 and 6 solar-mass red supergiants

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...235..554s&link_type=abstract

Astrophysical Journal, Part 1, vol. 235, Jan. 15, 1980, p. 554-564.

Astronomy and Astrophysics

Astrophysics

21

Carbon Stars, Convection, Nuclear Fusion, Stellar Envelopes, Stellar Evolution, Supergiant Stars, Helium, Hydrogen, Stellar Luminosity, Temperature Inversions

Scientific paper

The results of 61 detailed numerical flash calculations are examined, with particular reference to 3 and 6 solar-mass stars with core masses ranging from 0.56 to 0.60 the solar mass and 0.94 to 0.95 the solar mass, respectively. First penetration of the convective envelope into pockets of carbon in the intershell region was found for the 15th flash for the 6 solar-mass case, with continuing deeper penetration for the flashes thereafter. However, no such type of envelope penetration could be found for the 3 solar-mass case.

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