论文标题
自我类似绝热的强烈爆炸在中等重力跌落到点质量中
Self Similar Adiabatic Strong Explosion in a Medium Gravitationally Free Falling to a Point Mass
论文作者
论文摘要
我们对经典的塞多夫·泰勒（Sedov Taylor）爆炸产生了概括，其中培养基自由降至爆炸中心的点质量。为了验证我们的分析结果，我们将它们与一组数值模拟进行了比较。我们发现存在一个临界能量，而不是在重力下向外传播冲击摊位和倒塌。此外，我们发现，当绝热指数增加并且材料更均匀地分布在冲击区域内时，临界能阈值的值会降低。我们将此模型应用于核心崩溃超新星中的冲击弹跳问题，在该核心中子恒星用作点质量。阈值能量与质量分布之间的关系可能有助于解释湍流如何防止核心崩溃超新星爆炸中的冲击停滞和衰退。
We develop a generalisation to the classical Sedov Taylor explosion where the medium free falls to a point mass at the centre of the explosion. To verify our analytic results, we compare them to a suite of numerical simulations. We find that there exists a critical energy below which, instead of propagating outward the shock stalls and collapses under gravity. Furthermore, we find that the value of the critical energy threshold decreases when the adiabatic index increases and material is more evenly distributed within the shocked region. We apply this model to the problem of a shock bounce in core collapse supernova, in which the proto neutron star serves as the point mass. The relation between the threshold energy and the distribution of mass in the shock might help explain how turbulence prevents shock stalling and recession in a core collapse supernova explosion.
