Relativistic blast waves in two dimensions. I. The adiabatic case.
Relativistic blast waves in two dimensions. I. The adiabatic case.
复制标题
二维相对论爆炸波。
DOI：
10.1086/157446
复制
发表时间：
1979
期刊：
影响因子：
--
通讯作者：
P. Shapiro
中科院分区：
文献类型：
--
作者：
P. Shapiro
本文给出了在密度随距爆炸中心距离和极角变化的轴对称环境气体中发生点爆炸产生的强绝热相对论爆炸波的动力学演化的近似解。极端相对论情形下的解是解析的或准解析的，任意相对论情形下的解是数值的。非平面相对论激波的一些一般性质也进行了讨论，包括不相干的球形超相对论冲击波的角度尺度大于冲击洛伦兹因子的倒数，以及产生冲击波加速的条件。
Approximate solutions are presented for the dynamical evolution of strong adiabatic relativistic blast waves which result from a point explosion in an ambient gas in which the density varies both with distance from the explosion center and with polar angle in axisymmetry. Solutions are analytical or quasi-analytical for the extreme relativistic case and numerical for the arbitrarily relativistic case. Some general properties of nonplanar relativistic shocks are also discussed, including the incoherence of spherical ultrarelativistic blast-wave fronts on angular scales greater than the reciprocal of the shock Lorentz factor, as well as the conditions for producing blast-wave acceleration.