DOI: 10.1002/grl.50662
论文题名: Small-scale magnetic fields on the lunar surface inferred from plasma sheet electrons
作者: Harada Y. ; Machida S. ; Saito Y. ; Yokota S. ; Asamura K. ; Nishino M.N. ; Tsunakawa H. ; Shibuya H. ; Takahashi F. ; Matsushima M. ; Shimizu H.
刊名: Geophysical Research Letters
ISSN: 0094-8821
EISSN: 1944-8552
出版年: 2013
卷: 40, 期: 13 起始页码: 3362
结束页码: 3366
语种: 英语
英文关键词: crustal magnetization
; electron
; magnetic anomaly
; Moon
; plasma sheet
Scopus关键词: Crustal magnetic fields
; Crustal magnetization
; High-energy electron
; Magnetic anomalies
; Magnetic field data
; Plasma sheet
; South Pole-Aitken basins
; Surface distributions
; Electrons
; Magnetic fields
; Moon
; Plasma sheaths
; Magnetization
; electron
; lunar crust
; magnetic anomaly
; magnetic field
; magnetic survey
; magnetization
; plasma
英文摘要: The origins of the lunar crustal magnetic fields remain unclear although dozens of magnetic field measurements have been conducted on and above the lunar surface. A major obstacle to resolving this problem is the extreme difficulty of determining a surface distribution of small-scale magnetization. We present a new technique to map small-scale magnetic fields using nonadiabatic scattering of high-energy electrons in the terrestrial plasma sheet. Particle tracing, utilizing three-dimensional lunar magnetic field data synthesized from magnetometer measurements, enables us to separate the contributions to electron motion of small- and large-scale magnetic fields. We map significant kilometer-scale magnetic fields on the southwestern side of the South Pole-Aitken basin that are correlated with larger-scale magnetization. This implies that kilometer-scale magnetization may be ubiquitous over the lunar surface and related to the large-scale magnetization. Key Points Lunar small-scale magnetization can be inferred from plasma sheet electrons Strong small-scale magnetization is related to large-scale magnetization Small-scale magnetization may be ubiquitous over the lunar surface ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880846437&doi=10.1002%2fgrl.50662&partnerID=40&md5=66d2164f90c101baa3e9976a5b4293f8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6085
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geophysics, Kyoto University, Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
Recommended Citation:
Harada Y.,Machida S.,Saito Y.,et al. Small-scale magnetic fields on the lunar surface inferred from plasma sheet electrons[J]. Geophysical Research Letters,2013-01-01,40(13).