The “Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun” mission provides a unique opportunity to study the structure of interplanetary shocks and the associated generation of plasma waves with frequencies between ∼50 and 8000 Hz due to its long duration electric and magnetic field burst waveform captures. We compare wave properties and occurrence rates at 11 quasi-perpendicular interplanetary shocks with burst data within 10 minutes (∼3200 proton gyroradii upstream, ∼1900 downstream) of the shock ramp. A perturbed shock is defined as possessing a large amplitude whistler precursor in the quasi-static magnetic field with an amplitude greater than 1/3 the difference between the upstream and downstream average magnetic field magnitudes; laminar shocks lack these large precursors and have a smooth, step function-like transition. In addition to wave modes previously observed, including ion acoustic, whistler, and electrostatic solitary waves, waves in the ion acoustic frequency range that show rapid temporal frequency change are common. Three shocks had burst captures in the ramp; of these, the two laminar shocks contained a wide range of large amplitude wave modes in the ramp whereas the one perturbed shock contained no such waves. Thus, energy dissipation through wave–particle interactions is more prominent in these two laminar shocks than in the perturbed shock. Based on observations from all 11 shocks, the wave occurrence rates for laminar shocks are higher in the transition region, especially the ramp, than downstream. In contrast, perturbed shocks have approximately 2–3 times the wave occurrence rate downstream than laminar shocks.

“月球与太阳相互作用的加速、重联、湍流和电动力学”任务提供了一个独特的机会来研究行星际冲击的结构以及频率在 50 到 8000 Hz 之间的等离子体波的相关生成，这是由于其长时间的电和磁场突发波形捕获。我们将 11 次准垂直行星际激波的波特性和发生率与激波斜坡 10 分钟内（上游约 3200 个质子陀螺半径，下游约 1900 个）的爆发数据进行比较。扰动冲击被定义为在准静态磁场中具有大振幅的哨声前兆，其振幅大于上游和下游平均磁场强度差值的 1/3；层流激波缺少这些大的前体，并且具有平滑的、阶跃函数式过渡。除了先前观察到的波模式（包括离子声波、哨声和静电孤波）外，离子声频范围内显示出快速时间频率变化的波也很常见。三次冲击在斜坡上爆发了捕获；其中，两个层流激波在斜坡中包含范围广泛的大振幅波模式，而一个扰动激波不包含这种波。因此，通过波粒相互作用的能量耗散在这两种层流激波中比在扰动激波中更为突出。根据对所有 11 次冲击的观察，层流冲击的波浪发生率在过渡区，尤其是斜坡，高于下游。相比之下，扰动冲击波在下游的发生率大约是层流冲击波的 2-3 倍。