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- W3100849071 startingPage "1310" @default.
- W3100849071 abstract "Incorporating the effect of mass-stripping and accretion-disk instability on the evolution of WD binary, we carried out binary stellar evolution calculations for more than 1600 close WD binaries. As a result, the initial parameter spaces for SNe Ia are presented in an orbital period-secondary mass ($log P_{rm i}, M_{rm 2}^{rm i}$) plane. We confirmed that in a WD + MS system, the initial companion leading to SNe Ia may have mass from 1 $M_{odot}$ to 5 $M_{odot}$. The initial WD mass for SNe Ia from WD + MS channel is as low as 0.565 $M_{odot}$, while the lowest WD mass from the WD + RG channel is 1.0 $M_{odot}$. Adopting the results above, we studied the birth rate of SNe Ia via a binary population synthesis approach. We found that the Galactic SNe Ia birth rate from SD model is $2.55 - 2.9times10^{rm -3}$ ${rm yr}^{rm -1}$ (including WD + He star channel), which is slightly smaller than that from observation. If a single starburst is assumed, the distribution of the delay time of SNe Ia from the SD model is a weak bimodality, where WD + He channel contribute to SNe Ia with delay time shorter than $10^{rm 8}$ yr and WD + RG channel to those with age longer than 6 Gyr." @default.
- W3100849071 created "2020-11-23" @default.
- W3100849071 creator A5078977131 @default.
- W3100849071 creator A5087115297 @default.
- W3100849071 date "2010-01-28" @default.
- W3100849071 modified "2023-10-12" @default.
- W3100849071 title "A COMPREHENSIVE PROGENITOR MODEL FOR SNe Ia" @default.
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