DOI: 10.1002/2014GL062020
论文题名: Van Allen Probe observations of periodic rising frequencies of the fast magnetosonic mode
作者: Boardsen S.A. ; Hospodarsky G.B. ; Kletzing C.A. ; Pfaff R.F. ; Kurth W.S. ; Wygant J.R. ; Macdonald E.A.
刊名: Geophysical Research Letters
ISSN: 0094-9541
EISSN: 1944-9272
出版年: 2014
卷: 41, 期: 23 起始页码: 8161
结束页码: 8168
语种: 英语
英文关键词: fast magnetosonic waves
; inner dayside magnetosphere
; periodic dispersive features
Scopus关键词: Dispersion (waves)
; Magnetoplasma
; Magnetosphere
; Plasma density
; Spacecraft
; Frequency features
; Magnetic local time
; Magnetosonic mode
; Magnetosonic waves
; Periodic dispersive features
; Plasmapause
; Plasmasphere
; Spacecraft location
; Probes
; dispersion
; frequency analysis
; magnetic field
; plasma
; qualitative analysis
; spacecraft
英文摘要: Near simultaneous periodic dispersive features of fast magnetosonic mode emissions are observed by both Van Allen Probes spacecraft while separated in magnetic local time by ∼5 h: Probe A at 15 and Probe B at 9-11 h. Both spacecraft see similar frequency features, characterized by a periodic repetition at ∼180 s. Each repetition is characterized by a rising frequency. Since no modulation is observed in the proton shell distribution, the plasma density, or in the background magnetic field at either spacecraft we conclude that these waves are not generated near the spacecraft but external to both spacecraft locations. Probe A while outside the plasmapause sees the start of each repetition ∼40 s before probe B while deep inside the plasmasphere. We can qualitatively reproduce the dispersive features but not the quantitative details. The cause for this phenomena remains to be identified. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921561379&doi=10.1002%2f2014GL062020&partnerID=40&md5=1f241f68b1bacf1acf9603b50b4e4425
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6805
Appears in Collections: 气候减缓与适应
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作者单位: Goddard Planetary Heliophysics Institute, University of Maryland, Baltimore County, MD, United States
Recommended Citation:
Boardsen S.A.,Hospodarsky G.B.,Kletzing C.A.,et al. Van Allen Probe observations of periodic rising frequencies of the fast magnetosonic mode[J]. Geophysical Research Letters,2014-01-01,41(23).