Multi-dimensional numerical simulations of type Ia supernova explosions

TL;DR

This paper reviews the development of multi-dimensional numerical models of type Ia supernovae, emphasizing their importance for understanding supernova mechanisms and cosmological applications, and discusses a specific deflagration model example.

Contribution

It provides a comprehensive review of recent multi-dimensional modeling approaches for type Ia supernovae and details a particular deflagration model implementation and validation.

Findings

The deflagration model can reproduce key observational features.

Multi-dimensional models are essential for accurate supernova simulations.

Validation against observations supports the model's relevance.

Abstract

The major role type Ia supernovae play in many fields of astrophysics and in particular in cosmological distance determinations calls for self-consistent models of these events. Since their mechanism is believed to crucially depend on phenomena that are inherently three-dimensional, self-consistent numerical models of type Ia supernovae must be multi-dimensional. This field has recently seen a rapid development, which is reviewed in this article. The different modeling approaches are discussed and as an illustration a particular explosion model -- the deflagration model -- in a specific numerical implementation is presented in greater detail. On this exemplary case, the procedure of validating the model on the basis of comparison with observations is discussed as well as its application to study questions arising from type Ia supernova cosmology.