Results 141 to 150 of about 916 (176)

On the form of the flow in the magnetosheath

Journal of Geophysical Research: Space Physics, 1992
The form of the flow field in the subsonic and transsonic magnetosheath has received little attention since the proposal of a depletion layer adjacent to the magnetopause by Zwan and Wolf. Recently, observations of density enhancements just upstream of the magnetopause which have been interpreted as slow mode compressional fronts appear to contradict ...
David J. Southwood, Margaret G. Kivelson
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Mirror instability in the magnetosheath

Advances in Space Research, 1994
We describe mirror mode structures observed by ISEE 1 and ISEE 2. We cite an example where there is a good correlation between signals measured at the two spacecraft while they are 2250 km apart, and another example where the correlation is much poorer, although the spacecraft are only 340 km apart.
A.N. Fazakerley, D.J. Southwood
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Magnetosheath whistler turbulence

Journal of Geophysical Research: Space Physics, 1985
Magnetic field short‐period fluctuations δB are observed throughout the earth's magnetosheath. We report a study of these fluctuations with frequencies 20 < f < 1000 Hz in which the turbulence has a broadband spectrum δB²(f) varying approximately as f−α, where α ∼ 4±0.5, or consists of a narrowband intermediate frequency peak superimposed on the ...
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Magnetic fields of the magnetosheath

Reviews of Geophysics, 1976
The magnetic field of the magnetosheath is most naturally discussed in terms of its steady state and its fluctuating components. The theory of the steady state field is quite well developed, and its essential features have been confirmed by observations.
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MHD-modelling of the magnetosheath

Planetary and Space Science, 2002
Abstract A short discussion of some problems of magnetosheath physics is presented. In particular, anisotropic MHD models of the magnetosheath are discussed. A method to estimate the value of the characteristic relaxation time (τ) of the proton temperature anisotropy from experimental data is proposed.
Pudovkin, M., Zaitseva, S., Lebedeva, V., Samsonov, A., Besser, B., Meister, C., Baumjohann, W.   +6 more
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Magnetosheath electrostatic turbulence

Journal of Geophysical Research: Space Physics, 1979
By using measurements with the University of Iowa plasma wave experiment on the Imp 6 satellite a study has been conducted of the spectrum of electrostatic plasma waves in the terrestrial magnetosheath. Electrostatic plasma wave turbulence is almost continuously present throughout the magnetosheath with broadband (20 Hz to 70 kHz) rms field intensities
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The cusp-magnetosheath interface

Journal of Geophysical Research, 1976
Three Heos 2 passes through the distant cusp-magnetosheath transition in summer 1973 are described. By combining data from three different experiments on board Heos 2 it has been possible to identify a distinct transition from a ‘stagnant’ plasma (the distant cusp) to a region of ‘reduced flow’ magnetosheath.
A. Mencke Hansen, A. Bahnsen, N. D'Angelo   +2 more
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Near-magnetopause magnetosheath in 3D gasdynamic module of the numerical magnetosheath–magnetosphere model

Advances in Space Research, 2016
Abstract This paper describes an approach to a theoretical interpretation of Interball-1 satellite measurements data in two cases of the satellite’s crossings of the magnetosheath. An interpretation is made of both the measured crossings of the magnetosheath boundaries and the behavior of the registered plasma parameters. In our case, it is the value
P.S. Dobreva, M.D. Kartalev, N.L. Borodkova, G.N. Zastenker   +3 more
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Turbulence Surrounding Magnetosheath Jets: Are Pressure Enhancement Stirring the Magnetosheath?

Earth&#8217;s magnetosheath, the region between Earth&#8217; magnetic field and the bow shock, gives rise to a plethora of transients, waves, and instabilities. Each effect changes the plasma parameter distribution, impacting the behaviour of the plasma that finally hits our magnetic field. Turbulence plays a crucial role in how energy injected
Florian Koller, Christopher Chen, Heli Hietala   +2 more
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Magnetosheath Structure in an Anisotropic Plasma Model

Astrophysics and Space Science, 2000
Variations of the magnetic field and plasma parameters across the Earth's magnetosheath are calculated for an anisotropic plasma in the Chew-Goldberger-Low approximation. Additionally, proton pitch-angle diffusion is taken into account as the energy transfer mechanism between the direction perpendicular and parallel to the magnetic field.
Besser, B., Pudovkin, M., Lebedeva, V., Zaitseva, S., Meister, C.   +4 more
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