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DOI | 10.1126/science.aap8730 |
Direct measurements of two-way wave-particle energy transfer in a collisionless space plasma | |
Kitamura, N.1,2; Kitahara, M.3; Shoji, M.4; Miyoshi, Y.4; Hasegawa, H.1; Nakamura, S.5; Katoh, Y.3; Saito, Y.1; Yokota, S.6; Gershman, D. J.7; Vinas, A. F.7,8; Giles, B. L.7; Moore, T. E.7; Paterson, W. R.7; Pollock, C. J.9; Russell, C. T.10; Strangeway, R. J.10; Fuselier, S. A.11,12; Burch, J. L.11 | |
2018-09-07 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 361期号:6406页码:1000-1003 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; USA |
英文摘要 | Particle acceleration by plasma waves and spontaneous wave generation are fundamental energy and momentum exchange processes in collisionless plasmas. Such wave-particle interactions occur ubiquitously in space. We present ultrafast measurements in Earth's magnetosphere by the Magnetospheric Multiscale spacecraft that enabled quantitative evaluation of energy transfer in interactions associated with electromagnetic ion cyclotron waves. The observed ion distributions are not symmetric around the magnetic field direction but are in phase with the plasma wave fields. The wave-ion phase relations demonstrate that a cyclotron resonance transferred energy from hot protons to waves, which in turn nonresonantly accelerated cold He+ to energies up to similar to 2 kilo-electron volts. These observations provide direct quantitative evidence for collisionless energy transfer in plasmas between distinct particle populations via wave-particle interactions. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000443892700042 |
WOS关键词 | ION-CYCLOTRON WAVES ; ALLEN RADIATION BELTS ; MAGNETOSPHERIC MULTISCALE ; INTERACTION ANALYZER ; OMEGA-HE ; ACCELERATION ; ELECTRONS ; RESONANCE ; GEOS-1 ; HEART |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/199533 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa, Japan; 2.Univ Tokyo, Grad Sch Sci, Dept Earth & Planetary Sci, Tokyo, Japan; 3.Tohoku Univ, Grad Sch Sci, Dept Geophys, Sendai, Miyagi, Japan; 4.Nagoya Univ, Inst Space Earth Environm Res ISEE, Nagoya, Aichi, Japan; 5.Kyoto Univ, RISH, Uji, Kyoto, Japan; 6.Osaka Univ, Grad Sch Sci, Dept Earth & Space Sci, Toyonaka, Osaka, Japan; 7.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; 8.Amer Univ, Dept Phys, Washington, DC 20016 USA; 9.Denali Sci, Fairbanks, AK USA; 10.Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90024 USA; 11.Southwest Res Inst, San Antonio, TX USA; 12.Univ Texas San Antonio, San Antonio, TX USA |
推荐引用方式 GB/T 7714 | Kitamura, N.,Kitahara, M.,Shoji, M.,et al. Direct measurements of two-way wave-particle energy transfer in a collisionless space plasma[J]. SCIENCE,2018,361(6406):1000-1003. |
APA | Kitamura, N..,Kitahara, M..,Shoji, M..,Miyoshi, Y..,Hasegawa, H..,...&Burch, J. L..(2018).Direct measurements of two-way wave-particle energy transfer in a collisionless space plasma.SCIENCE,361(6406),1000-1003. |
MLA | Kitamura, N.,et al."Direct measurements of two-way wave-particle energy transfer in a collisionless space plasma".SCIENCE 361.6406(2018):1000-1003. |
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