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Solitary potential structures observed in the magnetosheath by the Cluster spacecraft
Gurnett, D. A.; Balogh, A.; Pickett, J. S. +4 more
Bipolar pulses of ~ 25-100 µs in duration have been observed in the wave electric field data obtained by the Wideband plasma wave instrument on the Cluster spacecraft in the dayside magnetosheath. These pulses are similar in almost all respects to those observed on several spacecraft over the last few years. They represent solitary potential struc…
Large amplitude solitary waves in and near the EarthÂ’s magnetosphere, magnetopause and bow shock: Polar and Cluster observations
André, M.; Cattell, C.; Dombeck, J. +6 more
Solitary waves with large electric fields (up to 100's of mV/m) have been observed throughout the magnetosphere and in the bow shock. We discuss observations by Polar at high altitudes ( ~ 4-8 RE ), during crossings of the plasma sheet boundary and cusp, and new measurements by Polar at the equatorial magnetopause and by Cluster near the bow shock…
Model for vortex turbulence with discontinuities in the solar wind
Tsurutani, B. T.; Verkhoglyadova, O. P.; Dasgupta, B.
A model of vortex with embedded discontinuities in plasma flow is developed in the framework of ideal MHD in a low b plasma. Vortex structures are considered as a result of 2-D evolution of nonlinear shear Alfvén waves in the heliosphere. Physical properties of the solutions and vector fields are analyzed and the observational aspects of the model…
On ion-cyclotron-resonance heating of the corona and solar wind
Tu, C. -Y.; Marsch, E.; Vocks, C.
This paper concisely summarizes and critically reviews recent work by the authors on models of the heating of the solar corona by resonance of ions with high-frequency waves (up to the proton cyclotron frequency). The quasi-linear theory of pitch angle diffusion is presented in connection with relevant solar wind proton observations. Hybrid fluid-…