Remote Detection of Drift Resonance Between Energetic Electrons and Ultralow Frequency Waves: Multisatellite Coordinated Observation by Arase and Van Allen Probes
Remote Detection of Drift Resonance Between Energetic Electrons and Ultralow Frequency Waves: Multisatellite Coordinated Observation by Arase and Van Allen Probes
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DOI：
10.1029/2019gl084379
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发表时间：
2019-11
影响因子：
5.2
通讯作者：
M. Teramoto;T. Hori;S. Saito;Y. Miyoshi;S. Kurita;N. Higashio;A. Matsuoka;Y. Kasahara;Y. Kasaba;T. Takashima;R. Nomura;M. Nosé;A. Fujimoto;Y.‐M. Tanaka;M. Shoji;Y. Tsugawa;M. Shinohara;I. Shinohara;J. Blake;J. Fennell;S. Claudepierre;D. Turner;C. Kletzing;D. Sormakov;O. Troshichev
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文献类型：
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作者：
M. Teramoto;T. Hori;S. Saito;Y. Miyoshi;S. Kurita;N. Higashio;A. Matsuoka;Y. Kasahara;Y. Kasaba;T. Takashima;R. Nomura;M. Nosé;A. Fujimoto;Y.‐M. Tanaka;M. Shoji;Y. Tsugawa;M. Shinohara;I. Shinohara;J. Blake;J. Fennell;S. Claudepierre;D. Turner;C. Kletzing;D. Sormakov;O. Troshichev
我们报告的电子通量调制没有相应的磁波动从独特的多点卫星观测的Arase（能源和辐射在地球空间的探索）和货车艾伦探测器（辐射带风暴探测器[RBSP]）-B卫星。2017年3月30日，Arase和RBSP B分别在当地时间的早晨和黄昏位于磁赤道附近时，观测到相对论电子通量的周期性波动，能量范围从500 keV到2 MeV。Arase未观察到Pc 5脉动，而RBSP-B观察到了。Arase观测到的相对论性电子涨落的清晰色散特征表明，源区仅限于午后至黄昏区。RBSP B和地面磁力仪观测证实了这一点，在那里观察到Pc 5脉动与黄昏的相对论电子漂移共振。因此，Arase“远程”观察到漂移共振特征，而RBSP-B“本地”观察到它们。
We report the electron flux modulations without corresponding magnetic fluctuations from unique multipoint satellite observations of the Arase (Exploration of Energization and Radiation in Geospace) and the Van Allen Probe (Radiation Belt Storm Probe [RBSP])‐B satellites. On 30 March 2017, both Arase and RBSP‐B observed periodic fluctuations in the relativistic electron flux with energies ranging from 500 keV to 2 MeV when they were located near the magnetic equator in the morning and dusk local time sectors, respectively. Arase did not observe Pc5 pulsations, while they were observed by RBSP‐B. The clear dispersion signature of the relativistic electron fluctuations observed by Arase indicates that the source region is limited to the postnoon to the dusk sector. This is confirmed by RBSP‐B and ground‐magnetometer observations, where Pc5 pulsations are observed to drift‐resonate with relativistic electrons on the duskside. Thus, Arase observed the drift‐resonance signatures “remotely,” whereas RBSP‐B observed them “locally.”