Kinetic Theory of Ring Current and Electromagnetic Ion Cyclotron Waves: Fundamentals

  • George V. KhazanovEmail author
Part of the Astrophysics and Space Science Library book series (ASSL, volume 372)


The inner magnetospheric plasma is a very unique composition of different plasma particles and waves. Among these plasma particles and waves are ring current (RC) particles and electromagnetic ion cyclotron (EMIC) waves. The RC is the source of free energy for the EMIC wave excitation provided by a temperature anisotropy of RC ions, which develops naturally during inward \({\bf{E}} \times {\bf{B}}\) convection from the plasma sheet. The cold plasmasphere, which is under the strong influence of the magnetospheric electric field, strongly mediates the RC–EMIC waves-coupling process, and ultimately becomes part of the particle and energy interplay. On the other hand, there is a strong influence of the RC on the inner magnetospheric electric and magnetic field configurations and these configurations, in turn, are important to RC dynamics. Therefore, one of the biggest needs for inner magnetospheric research is the continued progression toward a coupled, interconnected system, with the inclusion of nonlinear feedback mechanisms between the plasma populations, the electric and magnetic fields, and plasma waves.


Wave Packet Plasma Sheet Ring Current EMIC Wave Fast Fourier Transform Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Authors and Affiliations

  1. 1.Goddard Space Flight Center (GSFC) Heliophysics Science Div. (HSD)NASAGreenbeltUSA

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