Small-scale ion flux and magnetic field fluctuations in solar wind, foreshock and magnetosheath
N. N. Shevyreva), Du Jian(杜艰)b)c)†, G. N. Zastenkera), Wang Chi(王赤)b), and P. E. Eigesa)
a Space Research Institute, Russian Academy of Sciences, Profsoyuznaya Street 84/32, 117997, Moscow, Russia; b Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080, China; c Graduate School, Chinese Academy of Sciences, Beijing 100080, China
Abstract We have continued investigation of waves in the regions of undisturbed solar wind, foreshock and magnetosheath. The analysis of ion flux and magnetic field variations with the time interval 1--240s was performed in the regions above. Very large variation in such a time interval can be considered the common feature of the foreshock and magnetosheath. The results of case and statistical studies showed that the level of relative variations of ion flux and magnetic field magnitude in foreshock is about 3 times larger than in undisturbed solar wind. Variations of these parameters in the magnetosheath topologically connected with the quasi-parallel bow shock are about two times larger than those behind the quasi-perpendicular. We also compared the results from Interball-1 data analysis with those from statistical analysis of cluster magnetic field measurements. The magnetic field variations obtained from the different satellite data coincide with each other very well not only in quality but also in quantity.
Received: 21 April 2006
Revised: 29 November 2006
Accepted manuscript online:
Fund: Project supported by the Russian
Fund for Basic Research (RFBR 04-02-16152 and RFBR 04-02-39004),
Nauchnaya Shkola (NSh-5359.2006.2), the National Natural Science
Foundation of China (Grant No 40325010), RFBR-NSFC (2005－2006) and
the China--Russia Joint R
Cite this article:
N. N. Shevyrev, Du Jian(杜艰), G. N. Zastenker, Wang Chi(王赤), and P. E. Eiges Small-scale ion flux and magnetic field fluctuations in solar wind, foreshock and magnetosheath 2007 Chinese Physics 16 1477
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