We analyze Type II radio emissions observed by the Radio and Plasma Waves instrument onboard Wind to determine the emission region in shock fronts, using the blast wave reconstruction technique. Our results suggest that the processes of emission of a Type II radio burst occur not only in the upstream region of the shock, i.e. the region that precedes the collision, but also that there must be an emission of the material that has been compressed, as well as of the material that is in the compression region within the structure of the shock itself.

中文翻译：

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行星际冲击锋中II型射电爆发的发射区

我们分析了 Wind 上的无线电和等离子波仪器观测到的 II 型无线电发射，以确定激波前沿的发射区域，使用冲击波重建技术。我们的结果表明，II 型射电暴的发射过程不仅发生在激波的上游区域，即碰撞前的区域，而且必须存在已被压缩的材料的发射，如以及位于冲击本身结构内的压缩区域中的材料。