2006•AIP conference proceedingsRequires access

Nucleosynthesis by Type Ia Supernova for different Metallicity

Takuya Ohkubo

Abstract

We calculate nucleosynthesis by type Ia supernova for various metallicity. We adopt two typical hydrodynamical models, carbon deflagration and delayed detonation. The two main points of this research are to see that (1)how the ejected mass of 56Ni changes and (2)how abundance of each element (especially Fe‐group elements) is influenced by varying metallicity. We find that (1)56Ni mass changes about 15% in the range of Z = 0.001 – 0.05 and insufficient to explain all of the observed variety of SNe Ia peak luminosity, and (2)[Mn/Fe] and [Ni/Fe] show fairy dependence on metallicity (especially for delayed detonation model) while [Cr/Fe] or [α/Fe] do not.

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Key concepts: Nucleosynthesis, Metallicity, Supernova, Physics, Astrophysics, Luminosity, Detonation, Ejecta