DOI: 10.1002/2014GL059788
论文题名: On vertical electric fields at lunar magnetic anomalies
作者: Jarvinen R. ; Alho M. ; Kallio E. ; Wurz P. ; Barabash S. ; Futaana Y.
刊名: Geophysical Research Letters
ISSN: 0094-10215
EISSN: 1944-9946
出版年: 2014
卷: 41, 期: 7 起始页码: 2243
结束页码: 2249
语种: 英语
英文关键词: electric field
; Hall field
; lunar
; magnetic anomalies
; potential
; solar wind
Scopus关键词: Electric fields
; Electric potential
; Moon
; Solar wind
; Hall field
; lunar
; Lunar magnetic anomalies
; Magnetic anomalies
; potential
; Potential difference
; Quasi-neutral hybrids
; Vertical electric fields
; Magnetism
; electric field
; lunar crust
; magnetic anomaly
; solar wind
; three-dimensional modeling
英文摘要: We study the interaction between a magnetic dipole mimicking the Gerasimovich magnetic anomaly on the lunar surface and the solar wind in a self-consistent 3-D quasi-neutral hybrid simulation where ions are modeled as particles and electrons as a charge-neutralizing fluid. Especially, we consider the origin of the recently observed electric potentials at lunar magnetic anomalies. An antimoonward Hall electric field forms in our simulation resulting in a potential difference of <300V on the lunar surface, in which the value is similar to observations. Since the hybrid model assumes charge neutrality, our results suggest that the electric potentials at lunar magnetic anomalies can be formed by decoupling of ion and electron motion even without charge separation. Key Points Quasi-neutral hybrid simulation of lunar magnetic anomaly-solar wind interaction Formation of antimoonward Hall electric field at lunar magnetic anomaly Hall electric field results in potential wall even without charge separation © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897216626&doi=10.1002%2f2014GL059788&partnerID=40&md5=dd0565bfee2c3ada5147fcad7822b5b5
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7479
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Finnish Meteorological Institute, Helsinki, Finland
Recommended Citation:
Jarvinen R.,Alho M.,Kallio E.,et al. On vertical electric fields at lunar magnetic anomalies[J]. Geophysical Research Letters,2014-01-01,41(7).