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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Energy-Resolved Detection of Precipitating Electrons of 30–100 keV by a Sounding Rocket Associated With Dayside Chorus Waves
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Energy-Resolved Detection of Precipitating Electrons of 30–100 keV by a Sounding Rocket Associated With Dayside Chorus Waves

机译：能量分辨检测沉淀30 - 100 keV的电子探空火箭相关的光面合唱

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摘要

Whistler mode chorus waves scatter magnetospheric electrons and cause precipitation into the Earth's atmosphere. Previous measurements showed that nightside chorus waves are indeed responsible for diffuse/pulsating aurora. Although chorus waves and electron precipitation have also been detected on the dayside, their link has not been illustrated (or demonstrated) in detail compared to the nightside observations. Conventional low-altitude satellite observations do not well resolve the energy range of 10–100 keV, hampering verification on resonance condition with chorus waves. In this paper we report observations of energetic electrons with energies of 30–100 keV that were made by the electron sensor installed on the NASA's sounding rocket RockSat-XN. It was launched from the And?ya Space Center on the dayside (MLT ~ 11 h) at the L-value of ~7 on January 13, 2019. Transient electron precipitation was observed at ~50 keV with the duration of <100 s. The VLF receiver of a ground station at Kola peninsula in Russia near the rocket's footprint observed intermittent emissions of whistlermode waves at the VLF frequency range simultaneously with the rocket observations. The energy of precipitating electrons is consistent with those derived from the quasilinear theory of pitch angle scattering by chorus waves through cyclotron resonance, assuming a typical dayside magnetospheric electron density. Precise interaction region is discussed based on the obtained energy spectrum below 100 keV.
机译：惠斯勒合唱波散射磁性层的模式电子和降水的原因地球大气层。这的确阴面合唱波负责扩散/脉动极光。尽管合唱波和电子降水也被检测到的光面,他们链接没有说明(或证明)比阴面详细观察。传统的低空卫星观测不解决10 - 100的能量范围凯文,阻碍验证共振条件与合唱。报告的观察高能电子的30 - 100 keV能量了电子传感器安装在美国宇航局的测深火箭RockSat-XN。然后呢?l值的7 ~ 1月13日,2019年。瞬态电子降水观测到了~ 50 keV的持续时间< 100年代。科拉半岛的地面站的接收方附近的俄罗斯火箭的足迹间歇排放whistlermode波同时与甚低频频率范围火箭的观察。与来自电子是一致的螺旋角的拟线性理论散射通过合唱波回旋共振,假设一个典型的光面磁性层的电子密度。讨论了基于获得的能量谱

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