Oblique Whistler-Mode Waves in the Inhomogeneous Magnetospheric Plasma: Resonant Interactions with Energetic Charged Particles |
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Authors: | David Shklyar Hiroshi Matsumoto |
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Institution: | (1) Space Research Institute of RAS, Profsoyuznaya str. 84/32, 117997 Moscow, Russia;(2) Moscow Institute of Physics and Technology, Institute side street, 9, Dolgoprudny, Moscow Region, 141700, Russia;(3) Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan |
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Abstract: | A consistent account is given of the theory of resonant interactions between energetic charged particles and a whistler-mode
wave propagating obliquely to the non-uniform geomagnetic field in the inhomogeneous magnetospheric plasma. The basic equations
for the wave field and charged particle dynamics are presented, with the emphasis being placed on the parameters governing
the problem. A Hamiltonian approach is consistently used in the analysis of the particle equations of motion which are discussed
in detail and solved analytically in various cases. Two applications of the theory are considered. First, we calculate the
growth (or damping) rate for a whistler-mode wave propagating obliquely to geomagnetic field in the magnetosphere. Secondly,
we estimate the proton precipitation into the upper atmosphere induced by a VLF transmitter signal. |
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Keywords: | Resonant interaction Inhomogeneous magnetospheric plasma Whistler-mode wave Oblique propagation |
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