Supernovae and their remnants
Supernovae and their remnants
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超新星及其遗迹
DOI：
10.1007/978-94-010-2166-1_37
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发表时间：
1974
期刊：
影响因子：
--
通讯作者：
L. Woltjer
中科院分区：
文献类型：
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作者：
L. Woltjer
II型超新星必须与质量相当大的恒星有关。它们似乎只出现在星系的旋臂中，仅这一事实就为它们的主序星质量设定了约5 M <$m的下限。如果我们相信所有超过某个临界值的大质量恒星都会成为超新星（没有一颗低于这个值），那么超新星速率将表明质量超过10或20 M <$m，精确值取决于光度函数的特定选择。然而，这种类型的论点没有考虑到恒星演化可能依赖于双星系统的存在和其他因素，如旋转。
Supernovae of type II must be related to rather massive stars. They appear to occur rather exclusively in the spiral arms of galaxies and this fact alone sets a lower limit of about 5M⊙to their main sequence mass. If we believe that all massive stars above some critical value become supernovae (and none below this value) the supernova rate would indicate masses in excess of 10 or 20M⊙, the precise value depending on the particular choice of the luminosity function. Arguments of this type, however, do not take into account the possible dependence of stellar evolution on the presence of a binary system and other factors like rotation.