"Heart-shaped" plasmoid observed in the distant magnetotail

被引：0
|
作者：
Hirai, M. [1 ]
Kuroda, T. [2 ]
Ida, S. [1 ]
Hoshino, M. [1 ]
机构：
[1] Univ Tokyo, Dept Earth & Planetary Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo, Japan
[2] Univ Tokyo, Dept Astron, Bunkyo Ku, Tokyo, Japan
来源：
FUTURE PERSPECTIVES OF SPACE PLASMA AND PARTICLE INSTRUMENTATION AND INTERNATIONAL COLLABORATIONS | 2009年 / 1144卷
关键词：
MHD INTERMEDIATE SHOCKS; EVOLUTION;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We discovered plasmoids which have the "heart-shape" structure in the distant magnetotail by using the Geotail data. We also showed the existence of intermediate and slow shocks in the interface of heart shape structure. The plasma sheet density just before the heart-shaped plasmoid passage appeared to be larger than that of the averaged case. These results support the idea that the plasmoid generated in the near-Earth neutral line (NENL) may evolve into the heart-shape due to the nonuniform MHD velocities in the plasma sheet.
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页码：44 / +
页数：2
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