Magnetic Field Fluctuations in the Solar Wind,Foreshock and Magnetosheath: Cluster Data Analysis

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• 出版年：2005
• 作者：J.Du；C.Wang；X.X.Zhang；N.N.Shevyre；G.N.Zastenker
• 单位1：Key Laboratory of Space Weather, Center for Space Science and Applied Research,Chinese Academy of Sciences
• 单位2：Graduate School, Chinese Academy of Sciences
• 语种：中文
• 作者关键词：Magnetic field fluctuation；Solar Wind；Magnetosheath
• 起始页：368
• 总页数：6
• 经费资助：Supported by NNSFC (No.40325010)；RFBR-NSFC (2005-2006)；the China-Russia Joint Research Center on Space Weather, Chinese Academy of Sciences
• 刊名：空间科学学报
• 是否内版：否
• 刊频：双月刊
• 创刊时间：1981
• 主办单位：中国科学院空间科学与用研究中心；中国空间科学学会
• 主编：肖佐
• 电子信箱：cjss@center.cssar.ac.cn；journal@cspg.net
• 卷：25
• 期：5
• 期刊索取号：P280.66326

摘要

46 magnetosheath crossing events from the two years (2001.2—2003.1) of Cluster magnetic fieldmeasurements are identified and used to investigate the characters of the magnetic field fluctuations in theregions of undisturbed solar wind, foreshock, magnetosheath. The preliminary results indicate the propertiesof the plasma turbulence in the magnetosheath are strongly controlled by IMF orientation with respect tothe bow shock normal. The amplitude of the magnetic field magnitude and direction variations behind quasi-parallel bow shock are larger than those behind quasi-perpendicular bow shock. Almost purely compressionalwaves are found in quasi-perpendicular magnetosheath.