Instabilities and Supernova Explosions

在活动寿命结束时，大质量恒星会突然崩塌。紧随其后的是产生超新星爆炸的反弹。虽然超新星的基本机制已经知道一段时间了，但超新星模型一直无法再现这些事件的观测能量。PI显示，对流不稳定发生在反弹恒星的核心附近，他认为这对爆炸至关重要，并将纠正能量不足。在之前NSF的支持下，他开发了一个流体动力学代码来研究不稳定的发展，现在他提议开始超新星爆炸的多维研究。

At the end of its active life, a massive star will experience sudden collapse. This is followed by a rebound to produce a supernova explosion. While the basic mechanism has been known for some time, supernova models have been unable to reproduce the observed energies of these events. The PI showed that convective instabilities occur near the core of the rebounding star which he believes are of central importance to the explosion and which will rectify the energy deficiency. With previous NSF support, he has developed a hydrodynamic code to study the development of the instabilities and now proposes to embark on multi-dimensional studies of supernova explosions.