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DOI | 10.1029/2020GL090575 |
Excitation of oxygen ion cyclotron harmonic waves in the inner magnetosphere: Hybrid simulations | |
Kaijun Liu; Kyungguk Min; Bolu Feng; Yan Wang | |
2020-10-17 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | Hybrid simulations are carried out to investigate the excitation of oxygen ion cyclotron harmonic waves observed in the inner magnetosphere. The simulations show that these waves can be excited by energetic oxygen ions of a ring‐like velocity distribution. The excited waves have properties consistent with observations, but their nearly perpendicular propagation disagrees with the quasi‐parallel propagation from the singular value decomposition (SVD) analysis reported earlier. By performing the same SVD analysis on the simulated waves in a three‐dimensional simulation, it is demonstrated that the superposition of multiple waves with different azimuthal angles can cause the commonly‐used SVD analysis of wave propagation to yield incorrectly small wave normal angles. In addition, the results show that the enhanced waves scatter oxygen ions mainly along v⟂ through cyclotron resonance. The waves may also scatter energetic radiation belt electrons through bounce resonance and transit‐time scattering, similar to fast magnetosonic waves. |
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/299204 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Kaijun Liu,Kyungguk Min,Bolu Feng,et al. Excitation of oxygen ion cyclotron harmonic waves in the inner magnetosphere: Hybrid simulations[J]. Geophysical Research Letters,2020. |
APA | Kaijun Liu,Kyungguk Min,Bolu Feng,&Yan Wang.(2020).Excitation of oxygen ion cyclotron harmonic waves in the inner magnetosphere: Hybrid simulations.Geophysical Research Letters. |
MLA | Kaijun Liu,et al."Excitation of oxygen ion cyclotron harmonic waves in the inner magnetosphere: Hybrid simulations".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
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