DOI: 10.1002/grl.50892
论文题名: The effects of reflected protons on the plasma environment of the moon for parallel interplanetary magnetic fields
作者: Halekas J.S. ; Poppe A.R. ; McFadden J.P. ; Glassmeier K.-H.
刊名: Geophysical Research Letters
ISSN: 0094-8599
EISSN: 1944-8330
出版年: 2013
卷: 40, 期: 17 起始页码: 4544
结束页码: 4548
语种: 英语
英文关键词: Low Frequency Waves
; Moon
; reflected protons
; Wake
Scopus关键词: Comparative studies
; Interplanetary magnetic fields
; Ion-cyclotron frequency
; Low-frequency waves
; Lower frequency oscillations
; Magnetic field parallel
; Magnetosonic waves
; Plasma environments
; Frequency bands
; Magnetic fields
; Moon
; Wakes
; Protons
; foreshock
; interplanetary dust
; magnetic field
; Moon
; plasma
; solar wind
; turbulence
; wave
英文摘要: For the unique case of magnetic field parallel to the solar wind flow, a column of reflected protons can accumulate upstream from the Moon. We investigate observations from the ARTEMIS probes for an extended period with this geometry. During this time, P2 observes strong wave turbulence in two frequency bands above and below the ion cyclotron frequency near the Moon, not seen by P1 farther from the Moon. The lower frequency oscillations prove consistent with kinetic magnetosonic waves resonantly generated by reflected protons, and test particle calculations confirm that a significant column of reflected protons lies upstream when the waves occur. The reflected protons perturb a large volume of plasma around the Moon, extending upstream as well as into the wake. The waves observed near the Moon during this time period have many similarities to those found in the terrestrial foreshock and at comets, suggesting the potential for comparative studies. Key Points For parallel fields, reflected protons can travel well upstream from the Moon Reflected protons drive large amplitude low frequency waves in a large volume The reflected-proton-driven waves perturb the wake boundary ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84883567899&doi=10.1002%2fgrl.50892&partnerID=40&md5=41a8c7fbc539e4a6d352d1acaf281366
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5863
Appears in Collections: 气候减缓与适应
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作者单位: Space Sciences Laboratory, University of California, 7 Gauss Way, Berkeley, CA 94720, United States
Recommended Citation:
Halekas J.S.,Poppe A.R.,McFadden J.P.,et al. The effects of reflected protons on the plasma environment of the moon for parallel interplanetary magnetic fields[J]. Geophysical Research Letters,2013-01-01,40(17).