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DOI | 10.1029/2020GL090286 |
Large amplitude electrostatic proton plasma frequency waves in the magnetospheric separatrix and outflow regions during magnetic reconnection | |
K. Steinvall; Yu. V. Khotyaintsev; D. B. Graham; A. Vaivads; M. André; C. T. Russell | |
2021-02-19 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | We report Magnetospheric Multiscale observations of large amplitude, parallel, electrostatic, proton plasma frequency waves on the magnetospheric side of the reconnecting magnetopause. The waves are often found in the magnetospheric separatrix region and in the outflow near the magnetospheric ion edge. Statistical results from five months of data show that these waves are closely tied to the presence of cold (typically tens of eV) ions, found for 88% of waves near the separatrix region, and that plasma properties are consistent with ion acoustic wavegrowth. We analyze one wave event in detail, concluding that the wave is ion acoustic. We provide a simple explanation for the mechanisms leading to the development of the ion acoustic instability. These waves can be important for separatrix dynamics by heating the cold ion component and providing a mechanism to damp the kinetic Alfvén waves propagating away from the reconnection site. |
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/315611 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | K. Steinvall,Yu. V. Khotyaintsev,D. B. Graham,et al. Large amplitude electrostatic proton plasma frequency waves in the magnetospheric separatrix and outflow regions during magnetic reconnection[J]. Geophysical Research Letters,2021. |
APA | K. Steinvall,Yu. V. Khotyaintsev,D. B. Graham,A. Vaivads,M. André,&C. T. Russell.(2021).Large amplitude electrostatic proton plasma frequency waves in the magnetospheric separatrix and outflow regions during magnetic reconnection.Geophysical Research Letters. |
MLA | K. Steinvall,et al."Large amplitude electrostatic proton plasma frequency waves in the magnetospheric separatrix and outflow regions during magnetic reconnection".Geophysical Research Letters (2021). |
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