Multispacecraft measurements of plasma and magnetic field variations in the magnetosheath: Comparison with Spreiter models and motion of the structures

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• 作者：Zastenker ; G.N. ; Nozdrachev ; M.N. ; Nemecek ; Z. ; &Scaron ; afrá ; nková ; J. ; Paularena ; K.I. ; et. al.
• 关键词：94.30.Va ; 94.30.Di ; Solar wind interaction ; Magnetosheath ; Magnetopause ; Bow shock
• 刊名：Planetary and Space Science
• 出版年：2002
• 期刊代码：60_00320633
• 类别：ph
• 出版时间：April - May, 2002
• 卷：50
• 期：5-6
• 页码：601-612
• 文件大小：204 K

摘要

Large (from tens of percent up to several times) ion flux (or density) and magnetic field magnitude variations are typical magnetosheath features. Case and statistical comparisons of simultaneous solar wind observations, magnetosheath observations, and the gasdynamic model for the magnetosheath flow of Spreiter et al. (Planet. Space Sci. 14 (1966) 223) show that two types of magnetosheath plasma and magnetic field variations exist:

• in some cases, they are a repetition or amplification of solar wind or IMF disturbances which pass through the bow shock;