Phys. Rev. Lett. 92, 211102 (2004) [4 pages]Deflagrations and Detonations in Thermonuclear SupernovaeReceived 16 January 2004; published 28 May 2004 We study a type Ia supernova explosion using three-dimensional numerical simulations based on reactive fluid dynamics. We consider a delayed-detonation model that assumes a deflagration-to-detonation transition. In contrast with the pure deflagration model, the delayed-detonation model releases enough energy to account for a healthy explosion, and does not leave carbon, oxygen, and intermediate-mass elements in central parts of a white dwarf. This removes the key disagreement between simulations and observations, and makes a delayed detonation the mostly likely mechanism for type Ia supernovae. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.211102
DOI:
10.1103/PhysRevLett.92.211102
PACS:
97.60.Bw, 26.30.+k, 47.40.–x, 47.70.Fw
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