Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL076586 |
Sodium Ion Dynamics in the Magnetospheric Flanks of Mercury | |
Aizawa, Sae1,2; Delcourt, Dominique1; Terada, Naoki2 | |
2018-01-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:2页码:595-601 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Japan |
英文摘要 | We investigate the transport of planetary ions in the magnetospheric flanks of Mercury. In situ measurements from the MErcury Surface, Space ENvironment, GEochemistry, and Ranging spacecraft show evidences of Kelvin-Helmholtz instability development in this region of space, due to the velocity shear between the downtail streaming flow of solar wind originating protons in the magnetosheath and the magnetospheric populations. Ions that originate from the planet exosphere and that gain access to this region of space may be transported across the magnetopause along meandering orbits. We examine this transport using single-particle trajectory calculations in model Magnetohydrodynamics simulations of the Kelvin-Helmholtz instability. We show that heavy ions of planetary origin such as Na+ may experience prominent nonadiabatic energization as they ExB drift across large-scale rolled up vortices. This energization is controlled by the characteristics of the electric field burst encountered along the particle path, the net energy change realized corresponding to the maximum ExB drift energy. This nonadiabatic energization also is responsible for prominent scattering of the particles toward the direction perpendicular to the magnetic field. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425514300013 |
WOS关键词 | KELVIN-HELMHOLTZ INSTABILITY ; MESSENGER OBSERVATIONS ; CONSERVATION-LAWS ; ENVIRONMENT ; FIELDS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27767 |
专题 | 气候变化 |
作者单位 | 1.UPMC, CNRS, Ecole Polytech, Lab Phys Plasmas, Paris, France; 2.Tohoku Univ, Grad Sch Sci, Dept Geophys, Sendai, Miyagi, Japan |
推荐引用方式 GB/T 7714 | Aizawa, Sae,Delcourt, Dominique,Terada, Naoki. Sodium Ion Dynamics in the Magnetospheric Flanks of Mercury[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(2):595-601. |
APA | Aizawa, Sae,Delcourt, Dominique,&Terada, Naoki.(2018).Sodium Ion Dynamics in the Magnetospheric Flanks of Mercury.GEOPHYSICAL RESEARCH LETTERS,45(2),595-601. |
MLA | Aizawa, Sae,et al."Sodium Ion Dynamics in the Magnetospheric Flanks of Mercury".GEOPHYSICAL RESEARCH LETTERS 45.2(2018):595-601. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论