Stability of Detonations in Supernovae

Details Stability of Detonations in Supernovae Stability of Detonations in Supernovae

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...419..200k&link_type=abstract

Astrophysical Journal v.419, p.200

Astronomy and Astrophysics

Astronomy

14

Hydrodynamics, Instabilities, Nuclear Reactions, Nucleosynthesis, Abundances, Stars: Supernovae: General

Scientific paper

Carbon-oxygen thermonuclear detonations in supernovae are unstable at densities above ≃ 2 × 107 g cm-3 with respect to longitudinal perturbations. The instability is caused by the positive feedback between hydrodynamical fluctuations and the energy release in the 12C + 12C reaction. The question remains open whether the detonations are stable or not at densities below 2 × 107 g cm-3. The implications of the instability to the initiation of detonations in supernovae and supernovae nucleosynthesis are discussed.

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