On the C-14/alpha, gamma/O-18 reaction and the onset of the core helium flash

Details On the C-14/alpha, gamma/O-18 reaction and the onset of the core helium flash On the C-14/alpha, gamma/O-18 reaction and the onset of the core helium flash

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...235..565s&link_type=abstract

Astrophysical Journal, Part 1, vol. 235, Jan. 15, 1980, p. 565-569.

Astronomy and Astrophysics

Astrophysics

3

Astrophysics, Carbon 14, Chemical Reactions, Late Stars, Nuclear Fusion, Oxygen 18, Stellar Evolution, Helium, Nitrogen Isotopes, Reaction Kinetics, Stellar Models, Stellar Structure

Scientific paper

A reevaluation of the importance of the N-14(e-, v)C-14(alpha, gamma)O-18 (NCO) reaction in the evolution of low-mass stars through the core helium flash is presented. It is found that, independent of the exact value of the C-14(alpha, gamma)O-18 reaction rate, the NCO reaction is unimportant. The core helium flash is examined as a local phenomenon and a local thermal stability criterion is derived.

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