On the lower mass limit for the carbon detonation scenario

Details On the lower mass limit for the carbon detonation scenario On the lower mass limit for the carbon detonation scenario

Sep 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...200l..77e&link_type=abstract

Astrophysical Journal, vol. 200, Sept. 1, 1975, pt. 2, p. L77, L78.

Statistics

7

Carbon, Detonation, Stellar Envelopes, Stellar Evolution, Stellar Mass Ejection, Energy Transfer, Giant Stars, Kinetic Energy, Pulsars, Supernovae

Scientific paper

The lower mass limit for carbon detonation (about 4 solar masses) is due to an argument by Paczynski (1970) that stars in the range between 1.4 and 3.5 solar masses will lose their envelopes prior to carbon detonation. This argument is based on two criteria for mass loss: (1) the envelope is unstable to adiabatic oscillations, and (2) the total energy of the envelope is positive. Recent hydrodynamic calculations of red-giant envelopes have shown that the envelopes are highly nonadiabatic and that the second criterion is not a sufficient condition for mass loss. Thus, a calculation which takes into account the nonadiabatic nature of the envelope is required in order to determine the lower mass limit for carbon detonation. This lower mass limit is directly related to the formation mechanisms and statistics of supernovae and pulsars.

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