Mathematics – Logic
Scientific paper
Nov 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..ses.gd004c&link_type=abstract
American Physical Society, 71st Annual Meeting of the Southeastern Section, 11-13 November, 2004, Oak Ridge, TN. MEETING ID: S
Mathematics
Logic
Scientific paper
The cosmological implications of Type Ia supernovae depend crucially on their assumed standardizable candle properties. Therefore it is highly desirable to understand the detailed mechanism of the Ia supernova explosion from a fundamental point of view. There is some consensus that Type Ia supernovae result when a white dwarf in a binary star system is driven to the Chandrasekhar limit by accretion from a companion star, with the resulting instability triggering a thermonuclear runaway that burns most of the white dwarf to iron and nickel. However, the details of this mechanism are very poorly understood. The energy released in the supernovae comes primarily from the element and energy production network that powers the thermonuclear flash, but in most simulations of Ia explosions this network and its coupling to the hydrodynamics are treated only in an approximate fashion. In this presentation we shall discuss our current efforts to incorporate an improved description of energy generation networks coupled to hydrodynamics in Type Ia supernova simulations.
Budiardja Reuben
Chupryna Viktor
Guidry Mike
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