Double Star TC-1 observation of the earthward flowing plasmoids in the near magnetotail

被引：0

作者：

C M CARR ^{[1
]}

H RéME ^{[2
]}

机构：

[1] The Blackett Laboratory,Imperial College,London SW7 2BZ,UK

[2] Centre d'Etudes Spatiale des Rayonnements,BP 4346,31028 Toulouse Cedex 4,France

来源：

ChineseScienceBulletin | 2007年 / 13期

基金：

中国国家自然科学基金;

关键词：

magnetotail; magnetic loop; magnetic flux rope; multiple X-line; magnetic reconnection;

D O I：

暂无

中图分类号：

P153 [双星和聚星]; P142.83 [];

学科分类号：

070401 ;

摘要：

We analyze Double Star TC-1 magnetic field data from July to September in 2004 and find that plas-moids exist in the very near-Earth magnetotail. It is the first time that TC-1 observes the plasmoids inthe magnetotail at X > ?13 RE. According to the difference of the magnetic field structure in plasmoids,we choose two typical cases for our study: the magnetic flux rope on August 6 with the open magneticfield and the magnetic loop on September 14 with the closed magnetic field. Both of the cases are as-sociated with the high speed earthward flow and the magnetic loop is related to a strong substorm. Theions can escape from the magnetic flux rope along its open field line, but the case of the closed mag-netic loop can trap the ions. The earthward flowing plasmoids observed by TC-1 indicate that the mul-tiple X-line magnetic reconnection occurs beyond the distance of X=?10 RE from the earth.

引用

页码：1843 / 1848

页数：6