The distributed burning regime in Type Ia supernova models

Details The distributed burning regime in Type Ia supernova models The distributed burning regime in Type Ia supernova models

2004-11-24

arxiv.org/abs/astro-ph/0411667v1

Astron.Astrophys. 429 (2005) L29-L32

Astronomy and Astrophysics

Astrophysics

5 pages, 4 figures, Fig. 2 reduced in resolution to meet astro-ph file size restriction, accepted for publication by A&A Lett

Scientific paper

10.1051/0004-6361:200400100

The deflagration mode of flame propagation in Type Ia supernova (SN Ia) models requires a correct description of the interaction of the flame with turbulent motions. It is well-known that turbulent combustion proceeds in different regimes. For most parts of the deflagration in SNe Ia the flamelet regime applies. This has been modeled in previous multi-dimensional simulations. However, at late stages of the explosion, the flame will propagate in the so-called distributed regime. We investigate the effects of this regime on SN Ia models in a first and simplified approach and show that the trend of effects seems capable of curing some problems of current pure deflagration models.

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