Population Synthesis for Progenitors of Type Ia Supernovae

Details Population Synthesis for Progenitors of Type Ia Supernovae Population Synthesis for Progenitors of Type Ia Supernovae

2004-09-28

arxiv.org/abs/astro-ph/0409677v1

Astronomy and Astrophysics

Astrophysics

10 pages, 4 figires, to be published in White Dwarfs: Galactic and Cosmological Probes, Editors: E.M. Sion, H.L. Shipman and S

Scientific paper

We discuss application of population synthesis for binary stars to progenitors of SN Ia. We show that the only candidate systems able to support the rate of SNe Ia $\sim 10^{-3} yr^{-1}$ both in old and young populations are merging white dwarfs. In young populations ($\sim 1$ Gyr) edge-lit detonations in semidetached systems with nondegenerate helium star donors are also able to support a similar rate. The estimated current Galactic rate of SN Ia with single-degenerate progenitors is $\sim 10^{-4} yr^{-1}$.

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