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arXiv 0903.2636astro-ph.SR
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Ia型超新星的另一种共生通道

An Alternative Symbiotic Channel to Type Ia Supernovae

Guoliang Lv, Chunhua Zhu, Zhaojun Wang, Na Wang

摘要:

假设一颗红巨星的赤道盘为非球面星风,研究了Ia型超新星(SNe Ia)的共生通道产生。我们估计Ia型超新星通过共生通道的银河系出生率在$1.03\times 10^{-3}$和$2.27\times 10^{-5}$ yr $^{-1}$之间,Ia型超新星的延迟时间在$\sim$ 0.07 - 5 Gyr之间。赤道盘的出流速度和质量损失率对计算结果有很大影响。利用我们的模型,我们讨论了SN 2002 ic和SN 2006 X的祖先。

英文摘要:

By assuming an aspherical stellar wind with an equatorial disk from a red giant, we investigate the production of Type Ia supernovae (SNe Ia) via symbiotic channel. We estimate that the Galactic birthrate of SNe Ia via symbiotic channel is between $1.03\times 10^{-3}$ and $2.27\times 10^{-5}$ yr$^{-1}$, the delay time of SNe Ia has wide range from $\sim$ 0.07 to 5 Gyr. The results are greatly affected by the outflow velocity and mass-loss rate of the equatorial disk. Using our model, we discuss the progenitors of SN 2002ic and SN 2006X.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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