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DOI | 10.1029/2020GL089926 |
Pitch‐angle scattering of inner magnetospheric electrons caused by ECH waves obtained with the Arase satellite | |
M. Fukizawa; T. Sakanoi; Y. Miyoshi; Y. Kazama; Y. Katoh; Y. Kasahara; S. Matsuda; A. Matsuoka; S. Kurita; M. Shoji; M. Teramoto; S. Imajo; I. Shinohara; S.‐; Y. Wang; S. W.‐; Y. Tam; T.‐; F. Chang; B.‐; J. Wang; C.‐; W. Jun | |
2020-10-29 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | Electrostatic electron cyclotron harmonic (ECH) waves are generally excited in the magnetic equator region, in the sector from nightside to dayside during geomagnetically active conditions, and cause the pitch angle scattering by cyclotron resonance. The scattered electrons precipitate into the Earth's atmosphere and cause auroral emission. However, there is no observational evidence that ECH waves actually scatter electrons into the loss cone in the magnetosphere. In this study, from simultaneous wave and particle observation data obtained by the Arase satellite equipped with a high‐pitch angular resolution electron analyzer, we present evidence that the ECH wave intensity near the magnetic equator is correlated with an electron flux inside the loss cone with energy of about 5 keV. The simulation suggests that this electron flux contributes to auroral emission at 557.7 nm with intensity of about 200 R. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/301824 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | M. Fukizawa,T. Sakanoi,Y. Miyoshi,等. Pitch‐angle scattering of inner magnetospheric electrons caused by ECH waves obtained with the Arase satellite[J]. Geophysical Research Letters,2020. |
APA | M. Fukizawa.,T. Sakanoi.,Y. Miyoshi.,Y. Kazama.,Y. Katoh.,...&W. Jun.(2020).Pitch‐angle scattering of inner magnetospheric electrons caused by ECH waves obtained with the Arase satellite.Geophysical Research Letters. |
MLA | M. Fukizawa,et al."Pitch‐angle scattering of inner magnetospheric electrons caused by ECH waves obtained with the Arase satellite".Geophysical Research Letters (2020). |
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