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DOI | 10.1002/2017GL073763 |
Tangential deflection and formation of counterstreaming flows at the impact of a plasma jet on a tangential discontinuity | |
Voitcu, G.1; Echim, M.1,2 | |
2017-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | Romania; Belgium |
英文摘要 | In this letter we report three-dimensional particle-in-cell simulations of the interaction between a nonpenetrable magnetosheath jet and the magnetopause, for northward interplanetary magnetic field. The magnetopause is modeled as a tangential discontinuity with no magnetic shear. We investigate the deflection of the plasma jet in the direction tangential to the magnetopause. We find that as the frontal edge of the jet interacts with the magnetopause, the electrons and ions are scattered in opposite directions, tangential to the magnetopause, by the energy-dependent gradient-B drift. This effect is more effective on the nonthermal particles that tend to accumulate at the two sides of the jet and sustain a polarization electric field in the direction normal to the discontinuity surface. The electric drift of the bulk of particles under the action of this polarization electric field explains the deflection and counterstreaming at the impact of the plasma jet on the tangential discontinuity. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405854200006 |
WOS关键词 | SOLAR-WIND ENTRY ; IMPULSIVE PENETRATION ; SUBSOLAR MAGNETOSHEATH ; MAGNETIC-FIELD ; MAGNETOPAUSE ; MAGNETOSPHERE ; SIMULATIONS ; VIKING ; TRANSPORT ; ELEMENTS |
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/29010 |
专题 | 气候变化 |
作者单位 | 1.Inst Space Sci, Magurele, Romania; 2.Belgian Inst Space Aeron, Brussels, Belgium |
推荐引用方式 GB/T 7714 | Voitcu, G.,Echim, M.. Tangential deflection and formation of counterstreaming flows at the impact of a plasma jet on a tangential discontinuity[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(12). |
APA | Voitcu, G.,&Echim, M..(2017).Tangential deflection and formation of counterstreaming flows at the impact of a plasma jet on a tangential discontinuity.GEOPHYSICAL RESEARCH LETTERS,44(12). |
MLA | Voitcu, G.,et al."Tangential deflection and formation of counterstreaming flows at the impact of a plasma jet on a tangential discontinuity".GEOPHYSICAL RESEARCH LETTERS 44.12(2017). |
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