Abstract
The results of an experimental study of plasma and magnetic field fast variations in the magnetosheath are presented. A comparison of the measurements with predictions following from gasdynamic model was made on different time scales. It is shown that variations of magnetosheath parameters cannot be explained neither by variations in the interplanetary medium nor by a motion of the magnetosheath as a solid body. These variations are several times larger than simultaneous solar wind plasma and interplanetary magnetic field variations on the same time scale. The level of these variations was studied as a function of the direction of IMF. Performed comparison of simultaneous magnetosheath observations carried out by IMP 8, GEOTAIL, and INTERBALL-1 has shown that the observed variations can be considered as structures originating in the subsolar region and propagating downstream with the magnetosheath speed.
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Zastenker, G.N. et al. (1999). Plasma and Magnetic Field Variations in the Magnetosheath: Interball-1 and ISTP Spacecraft Observations. In: Sibeck, D.G., Kudela, K. (eds) Interball in the ISTP Program. NATO Science Series, vol 537. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4487-2_20
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DOI: https://doi.org/10.1007/978-94-011-4487-2_20
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