DOI: 10.1002/2014GL060459
论文题名: High-altitude M/Q=2 ion cyclotron whistlers in the inner magnetosphere observed by the Akebono satellite
作者: Matsuda S. ; Kasahara Y. ; Goto Y.
刊名: Geophysical Research Letters
ISSN: 0094-10568
EISSN: 1944-10299
出版年: 2014
卷: 41, 期: 11 起始页码: 3759
结束页码: 3765
语种: 英语
英文关键词: Akebono satellite
; crossover frequency
; inner magnetosphere
; ion cyclotron whistler
; M/Q = 2 ion
Scopus关键词: Deuterium
; Electromagnetic wave polarization
; Ions
; Magnetosphere
; Nuclear physics
; Satellites
; Akebono satellite
; Altitude regions
; Cross-over frequencies
; Electron whistlers
; Injection mechanisms
; Inner magnetosphere
; Ion concentrations
; Ion cyclotrons
; Plasmas
; altitude
; atmospheric electricity
; electromagnetic field
; estimation method
; magnetosphere
; satellite imagery
; solar wind
; Pachycephalidae
英文摘要: An ion cyclotron whistler is a left-handed polarized electromagnetic ion cyclotron mode wave converted from a lightning electron whistler. Some ion cyclotron whistlers have been identified as deuteron whistlers. This paper reports M/Q = 2 ion cyclotron whistlers observed by the Akebono satellite in the altitude region around 3200-10000 km (L = 1.5-3.4), which is a considerably higher altitude than those previously reported. This evidence indicates that M/Q = 2 ions are present not only in the low-altitude region but also in the inner magnetosphere around L = 3.4. We estimated the ion concentration from the crossover frequency of the M/Q = 2 ion cyclotron whistler wave observed in the altitude region around 4200 km (L = 1.7) and concluded that the concentration of M/Q = 2 ions was plausibly up to 12.6% during this event. Our observation results give important clues to study unknown minor ion profiles such as circulation mechanism of deuterons or injection mechanism of alpha particles in the solar wind. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84902041115&doi=10.1002%2f2014GL060459&partnerID=40&md5=c4f21f4babee13d17832cd9186a55349
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7832
Appears in Collections: 气候减缓与适应
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作者单位: Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Japan
Recommended Citation:
Matsuda S.,Kasahara Y.,Goto Y.. High-altitude M/Q=2 ion cyclotron whistlers in the inner magnetosphere observed by the Akebono satellite[J]. Geophysical Research Letters,2014-01-01,41(11).