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DOI | 10.1002/2017GL075877 |
Chorus Wave Modulation of Langmuir Waves in the Radiation Belts | |
Li, Jinxing1; Bortnik, Jacob1; An, Xin1; Li, Wen2; Thorne, Richard M.1; Zhou, Meng3; Kurth, William S.4; Hospodarsky, George B.4; Funsten, Herbert O.5; Spence, Harlan E.6 | |
2017-12-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:23 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Using high-resolution waveforms measured by the Van Allen Probes, we report a novel observation in the radiation belts. Namely, we show that multiband, discrete, rising-tone whistler mode chorus emissions exhibit a one-to-one correlation with Langmuir wave bursts. Moreover, the periodic Langmuir wave bursts are generally observed at the phase location where the chorus wave E-parallel to component is oriented opposite to its propagation direction. The electron measurements show a beam in phase space density at the particle velocity that matches the parallel phase velocity of the chorus waves. Based on this evidence, we conclude that the chorus waves accelerate the suprathermal electrons via Landau resonance and generate a localized electron beam in phase space density. Consequently, the Langmuir waves are excited locally and are modulated by the chorus wave phase. This microscale interaction between chorus waves and high-frequency electrostatic waves provides a new insight into the nonlinear wave-particle interaction process. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000419102400003 |
WOS关键词 | WHISTLER-MODE WAVES ; RESONANT INTERACTIONS ; ELECTROSTATIC BURSTS ; MULTIBAND CHORUS ; BANDED CHORUS ; ELECTRONS ; ACCELERATION ; GENERATION ; PARTICLE ; MAGNETOSPHERE |
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/28773 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA; 2.Boston Univ, Ctr Space Phys, Boston, MA 02215 USA; 3.Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA USA; 4.Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA; 5.Los Alamos Natl Lab, Los Alamos, NM USA; 6.Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA |
推荐引用方式 GB/T 7714 | Li, Jinxing,Bortnik, Jacob,An, Xin,et al. Chorus Wave Modulation of Langmuir Waves in the Radiation Belts[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(23). |
APA | Li, Jinxing.,Bortnik, Jacob.,An, Xin.,Li, Wen.,Thorne, Richard M..,...&Spence, Harlan E..(2017).Chorus Wave Modulation of Langmuir Waves in the Radiation Belts.GEOPHYSICAL RESEARCH LETTERS,44(23). |
MLA | Li, Jinxing,et al."Chorus Wave Modulation of Langmuir Waves in the Radiation Belts".GEOPHYSICAL RESEARCH LETTERS 44.23(2017). |
条目包含的文件 | 条目无相关文件。 |
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