Double detonations at the core-envelope boundary in Type IA supernovae

Details Double detonations at the core-envelope boundary in Type IA supernovae Double detonations at the core-envelope boundary in Type IA supernovae

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.301..405w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 301, Issue 2, pp. 405-413.

Astronomy and Astrophysics

Astronomy

7

Nuclear Reactions, Nucleosynthesis, Abundances, Shock Waves, Supernovae: General

Scientific paper

An off-centre detonation propagating near the interface between a C-O core and a He envelope in a Type Ia supernova explosion is modelled as a steady two-dimensional similarity solution at a plane interface. We assume that in both regions the energy release occurs in an infinitely thin detonation, which produces material in nuclear statistical equilibrium (NSE) in He and in nuclear statistical quasi-equilibrium in C-O. An alpha-network is then used to determine the effect of the associated rarefaction wave in the C-O on the final abundance of intermediate elements. We find that, although there is a significant effect, the rarefaction is not strong enough to quench the reactions and prevent the C-O from burning to NSE.

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