Can phase transitions of superdense matter strengthen supernova explosions
Can phase transitions of superdense matter strengthen supernova explosions
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DOI：
10.1016/0370-2693(85)91346-2
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发表时间：
1985-06
影响因子：
4.4
通讯作者：
M. Takahara;Katsuhiko Sato
中科院分区：
文献类型：
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作者：
M. Takahara;Katsuhiko Sato
Migdal等人认为超新星爆炸发生在由超密度物质的相变引发的恒星坍缩中。为了验证他们的建议，我们详细研究了这个问题，通过数值模拟，并得到以下结果：在强相变的情况下，即大的密度间隙，超新星爆炸减弱相反的建议，而在弱相变的情况下，爆炸加强。然而，喷射能量的增量最多为20%左右。这意味着，在目前的超新星理论中，爆炸的困难无法通过相变来解决。
Migdal et al. suggested that supernova explosions occur in the collapse of stars initiated by the phase transitions of superdense matter. In order to check their suggestion we investigate this problem in detail by numerical simulations and obtain the following results: In the case of strong phase transitions, i.e. large density gap, supernova explosions are weakened contrary to their suggestions, while in the case of weak phase transotions explosions are strengthened. However, the increment of the ejected energy is about 20% at most. This implies that the difficulty of explosion in current theories of supernovae cannot be solved by phase transitions.