Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ap%26ss..66..391k&link_type=abstract
Astrophysics and Space Science, vol. 66, no. 2, Dec. 1979, p. 391-400.
Astronomy and Astrophysics
Astrophysics
3
Carbon, Convective Heat Transfer, Mixing Length Flow Theory, Nuclear Fusion, Stellar Evolution, Cores, Neutrinos, Reaction Kinetics, Stellar Mass, Thermal Instability, Thermonuclear Reactions
Scientific paper
The results of a numerical investigation of the hydrostatic carbon burning in a degenerate carbon core with M = 1.4 solar masses are presented. Convective heat transfer has been taken into account according to the mixing length formalism. It is shown that for small convection the effective alpha approximately less than 10 to the minus third computational results are in agreement with the assumption of a hydrostatic evolution of the core. At alpha less than or equal to 10 to the minus 2 the burning times in successive mass zones become less than the hydrodynamic time for the core. In this case carbon burning starts with a rapidly propagating thermal instability. The connection between the convective and neutrino mechanisms of burning propagation is discussed.
Ergma E. V.
Kudriashov A. D.
Shcherbatiuk V. A.
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