Properties of Field Aligned Current in Plasma Sheet Boundary Layers in Magnetotail： Cluster Observation
Properties of Field Aligned Current in Plasma Sheet Boundary Layers in Magnetotail： Cluster Observation作者机构：State Key Laboratory of Space Weather Center for Space Science and Applied Research Chinese Academy of Sciences Beijing 100190 Space Research Institute Austrian Academy of Sciences Graz Austria SSTD Rutherford Appleton Laboratory Chilton Didcot UK
出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)
年 卷 期：2009年第26卷第2期
页 面：304-306页
核心收录：
学科分类：070801[理学-固体地球物理学] 070802[理学-空间物理学] 07[理学] 0708[理学-地球物理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学]
基 金：Supported by the National Natural Science Foundation of China under Grant Nos 40674091 40621003 and 40874084 and the Specialized Research Fund for State Key Laboratories
主 题：field emission molybdenum dioxide enhancement factor
摘 要：Field aligned current （FAC） distribution in the plasma sheet boundary layers （PSBLs） in the magnetotail is studied statistically by analysing magnetic field data from the Cluster 4-point measurements. The results show that the FAC distribution on the dusk side is not the same as that on the dawn side in the magnetotail. On the each side earthward and tailward, FA C occurrences are different; occurrence and average current density of FA Cs in the northern hemisphere are different from those in the southern hemisphere. This implies that the FACs have dusk-dawn side asymmetry, polarity asymmetry and inter hemisphere difference in the magnetotail. The present results give a good observation evidence for study on the FAC mechanism.
维普期刊数据库