EC-SNe FROM SUPER-ASYMPTOTIC GIANT BRANCH PROGENITORS: THEORETICAL MODELS VERSUS OBSERVATIONS
EC-SNe FROM SUPER-ASYMPTOTIC GIANT BRANCH PROGENITORS: THEORETICAL MODELS VERSUS OBSERVATIONS
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来自超渐近巨分支祖细胞的 EC-SNe：理论模型与观测结果
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
F. Patat
中科院分区：
文献类型：
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作者：
M. L. Pumo;M. Turatto;M. Botticella;A. Pastorello;S. Valenti;L. Zampieri;S. Benetti;E. Cappellaro;F. Patat
为了验证电子俘获超新星（EC-SN）场景是否与SN2008ha和SN2008S的观测结果相一致，我们使用参数化方法确定了爆炸时超渐近巨支（super-AGB）恒星的初始质量和金属丰度的函数。结果表明，这两种超新星（SNe）都可以用来自super-AGB祖先的EC-SNe来解释，它们在坍缩时具有不同的结构。本文还讨论了这些结果对其他亚光SNe解释的影响。
Using a parametric approach, we determine the configuration of super-asymptotic giant branch (super-AGB) stars at the explosion as a function of the initial mass and metallicity, in order to verify if the electron-capture supernova (EC-SN) scenario involving a super-AGB star is compatible with the observations regarding SN2008ha and SN2008S. The results show that both the supernovae (SNe) can be explained in terms of EC-SNe from super-AGB progenitors having a different configuration at the collapse. The impact of these results on the interpretation of other subluminous SNe is also discussed.