摘要
对Ⅱ型超新星瞬发爆炸模型的成功爆炸给出了一个简单明了的判据，即成功爆炸的必要条件是铁星核外区的质量小于０.４３Ｍ（Ｍ＝Ｍｃｏｒｅ－ＭＩＣ＜０．４３Ｍ）；充分条件是激波的能量大于铁星核外区的质量乘以２０ｆｏｅｓ（Ｅｓｈｏｃｋ＞（Ｍｏｃ／Ｍ）ｘ２０ｆｏｅｓ）．采用“等效厚度”的方法，由数值计算结果加以论证．
e discuss necessary and sufficient conditions for successful explosion in the promptexplosion model of type II supernovae. We give a very simple and clear criterion: a necessarycondition that MOC=Mcore-MIc < 0.43 M, Mcore, MIC and MOC being the massess insolar units, of the whole iron core, the inner and the outer core. and a sufficient conditionthat Eshock > ×20 foes, Eshock being the energy of the shock wave and 1 foe =1051 erg= 1044 J. The criterion has been verified by the results of numerical computation in termsof 'equivalent thickness'.
基金
国家自然科学基金
关键词
Ⅱ型超新星
瞬发爆炸模型
判据
超新星
type II supernovae-prompt explosion --successful criteria
