Plasma waves in the magnetosphere
The theory of waves in plasma is developed and applied to various wave phenomena in the magnetosphere. In Part 1 the theory of wave propagation in cold, warm and hot plasmas is developed. Particular attention is paid to the forms of refractive index surfaces, ray surfaces and group velocity surfaces which allow the visualization of the wave fronts which occur under different conditions. There is a full treatment of the interaction between waves and particles. These treatments are copiously illustrated in an attempt to give the reader an intentive feel for the nature of the phenomena. In Part 2 the theory is applied to a variety of natural wave phenomena which occur in the magnetosphere.
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Waves in a Uniform Cold Magnetoplasma 1 Infinite
Waves in a Uniform Cold Magnetoplasma 2 Rays
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altitude amplitude approximation assumed auroral behavior boundary circularly polarized CMA diagram coefficients cold plasma component condition consider contour coordinate corresponding cross-over curve cut-off dielectric tensor diffusion dispersion relation distribution function Doppler shifted duct effect electric field electromagnetic electron density electron plasma electrostatic waves energy equation equatorial plane equilibrium expression field line free space group velocity growth rate gyrofrequency hot plasma imaginary integral ion cyclotron whistler ion gyrofrequency ionosphere Landau damping loss cone loss-cone magnetic field magnetic field direction magnetopause magnetosphere marginal stability Maxwellian medium occurs parallel perpendicular phase speed pitch angle plane waves plasma frequency plasma waves plasmapause plasmasphere polarization label positive ions proton radiation ray tracing ray velocity refractive index surface region relativistic resonance cone resonant particles satellite shown in Figure signal single wave characteristic Snell's law solar wind theory values vector velocity space velocity surface wave propagation wavelength whistler mode whistler wave Z-mode zero