Astrophysics and Space Science

, Volume 2, Issue 3, pp 384–390 | Cite as

The influence of a variable initial composition on stellar silicon burning

  • James W. Truran


Silicon burning at a temperatureT=3×109K has been studied for three initial abundance configurations: (1) X(Si28)=1; (2) X(Si28)=X(Mg24)=0.5; and (3) X(Si28)=X(S32)=0.5. It may be observed that, in the absence of beta-decay, the results obtained for cases (2) and (3), in which admixtures of substantial mass fractions of Mg24 and S32 into a silicon region are considered, will converge toward those of the pure silicon relaxation problem. This convergence takes place on a rapid time scale for the Mg24 admixture while, in the case of a S32 admixture, the abundances of the heavy elements (A>28) are enhanced for a substantial fraction of the lifetime of the silicon burning process.


Silicon Burning Mass Fraction Burning Process Heavy Element 
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Copyright information

© D. Reidel Publishing Company 1968

Authors and Affiliations

  • James W. Truran
    • 1
  1. 1.Belfer Graduate School of ScienceYeshiva UniversityNew YorkUSA

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