Plasmoid formation for multiple onset substorms: observations of the Japanese Lunar Mission "Kaguya"

被引：6

作者：

Nagai, T. ^{[1
]}

Tsunakawa, H. ^{[1
]}

Shibuya, H. ^{[2
]}

Takahashi, F. ^{[1
]}

Shimizu, H. ^{[3
]}

Matsushima, M. ^{[1
]}

Nishino, M. N.

Yokota, Y.

Asamura, K.

Tanaka, T.

Saito, Y.

Amm, O. ^{[4
]}

机构：

[1] Tokyo Inst Technol, Tokyo 152, Japan

[2] Kumamoto Univ, Kumamoto, Japan

[3] Univ Tokyo, Tokyo, Japan

[4] Finnish Meteorol Inst, FIN-00101 Helsinki, Finland

来源：

ANNALES GEOPHYSICAE | 2009年 / 27卷 / 01期

关键词：

Magnetospheric physics; Magnetotail; Storms and substorms; Space plasma physics; Magnetic reconnection; TRAVELING COMPRESSION REGIONS; GEOTAIL OBSERVATIONS; SIGNATURES; EVOLUTION; DYNAMICS; PHASE; SHEET; TAIL;

D O I：

10.5194/angeo-27-59-2009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Japanese Lunar Mission "Kaguya" carried out its first magnetic field and plasma measurements in the Earth's magnetotail on 22 December 2007. Fortuitously, three well-defined multiple onset substoms took place. Kaguya was located in the premidnight magnetotail at radial distances of 56RE and observed plasmoids and/or traveling compression regions (TCRs). Although the present study is based on limited data sets, important issues on multiple onset substorms can be examined. Each onset in a series of onsets releases a plasmoid, and magnetic reconnection likely proceeds to tail lobe field lines for each onset. Since the duration of each plasmoid is less than 5 min, these observations imply that magnetic reconnection for each onset can develop fully to the tail lobe field lines and be quenched within this timescale.

引用

页码：59 / 64

页数：6