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DOI | 10.1029/2019GL085419 |
Ion-Beam-Driven Intense Electrostatic Solitary Waves in Reconnection Jet | |
Liu, C. M.1,2; Vaivads, A.2,3; Graham, D. B.2; Khotyaintsev, Yu, V2; Fu, H. S.1; Johlander, A.2,4,5; Andre, M.2; Giles, B. L.6 | |
2019-11-25 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:22页码:12702-12710 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Sweden; Finland; USA |
英文摘要 | Electrostatic solitary waves (ESWs) have been reported inside reconnection jets, but their source and role remain unclear hitherto. Here we present the first observational evidence of ESWs generation by cold ion beams inside the jet, by using high-cadence measurements from the Magnetospheric Multiscale spacecraft in the Earth's magnetotail. Inside the jet, intense ESWs with amplitude up to 30 mV m(-1) and potential up to similar to 7% of the electron temperature are observed in association with accelerated cold ion beams. Instability analysis shows that the ion beams are unstable, providing free energy for the ESWs. The waves are observed to thermalize the beams, thus providing a new channel for ion heating inside the jet. Our study suggests that electrostatic turbulence can play an important role in the jet dynamics. |
英文关键词 | reconnection jet dipolarization front electrostatic solitary waves ion beam instability wave-particle interations ion heating |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000498353500001 |
WOS关键词 | BURSTY BULK FLOWS ; ROLLING-PIN DISTRIBUTION ; DIPOLARIZATION FRONTS ; ENERGY-CONVERSION ; PARTICLE ENERGIZATION ; SEPARATRIX REGION ; ACCELERATION ; ANISOTROPY ; ONSET ; TAIL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/225084 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Beihang Univ, Sch Space & Environm, Beijing, Peoples R China; 2.Swedish Inst Space Phys, Uppsala, Sweden; 3.KTH Royal Inst Technol, Sch Elect Engn & Comp Sci, Space & Plasma Phys, Stockholm, Sweden; 4.Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden; 5.Univ Helsinki, Dept Phys, Helsinki, Finland; 6.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA |
推荐引用方式 GB/T 7714 | Liu, C. M.,Vaivads, A.,Graham, D. B.,et al. Ion-Beam-Driven Intense Electrostatic Solitary Waves in Reconnection Jet[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(22):12702-12710. |
APA | Liu, C. M..,Vaivads, A..,Graham, D. B..,Khotyaintsev, Yu, V.,Fu, H. S..,...&Giles, B. L..(2019).Ion-Beam-Driven Intense Electrostatic Solitary Waves in Reconnection Jet.GEOPHYSICAL RESEARCH LETTERS,46(22),12702-12710. |
MLA | Liu, C. M.,et al."Ion-Beam-Driven Intense Electrostatic Solitary Waves in Reconnection Jet".GEOPHYSICAL RESEARCH LETTERS 46.22(2019):12702-12710. |
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