Instabilities and Supernova Explosions

一颗大质量恒星在其活跃生命结束时，会经历突然的坍缩。随后反弹产生超新星爆炸。虽然基本机制已经知道了一段时间，但超新星模型无法再现这些事件所观测到的能量。PI表明，在反弹恒星的核心附近发生了对流不稳定性，他认为这对爆炸至关重要，并将纠正能量不足。在NSF之前的支持下，他开发了一种流体力学代码来研究不稳定性的发展，现在提议着手对超新星爆炸进行多维研究。

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.