Supersonic flows with high Mach number are ubiquitous in astrophysics. High-powered lasers also have the ability to drive high Mach number, radiating shock waves in laboratory plasmas, and recent experiments along these lines have made it possible to recreate analogs of high Mach-number astrophysical flows under controlled conditions. Streak cameras such as the Rochester optical streak system (ROSS) are particularly helpful in diagnosing such experiments, because they acquire spatially resolved measurements of the radiating gas continuously over a large time interval, making it easy to observe how any shock waves and ablation fronts present in the system evolve with time. This paper summarizes new ROSS observations of a laboratory analog of the collision of a stellar wind with an ablating planetary atmosphere embedded within a magnetosphere. We find good agreement between the observed ROSS data and numerical models obtained with the FLASH code, but only when the effects of optical depth are properly taken into account.

中文翻译：

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使用 ROSS 光学条纹相机作为了解激光驱动磁化冲击波实验室实验的工具

高马赫数的超音速流在天体物理学中无处不在。高功率激光器还具有驱动高马赫数、在实验室等离子体中辐射冲击波的能力，最近沿着这些方向进行的实验使得在受控条件下重建高马赫数天体物理流的类似物成为可能。诸如 Rochester 光学条纹系统 (ROSS) 之类的条纹相机在诊断此类实验时特别有用，因为它们在很长的时间间隔内连续获取辐射气体的空间分辨测量值，从而可以轻松观察任何冲击波和消融前沿是如何出现的在系统中随时间演化。本文总结了对实验室模拟恒星风与嵌入磁层内的消融行星大气碰撞的新 ROSS 观测结果。