Role of the Universal Instability in Auroral Phenomena
The role of the ‘universal’ instability in auroral phenomena is discussed. Excitation of the instability in the non-homogeneous magnetospheric plasma at R E ≈ 6 may modulate particle precipitation into the ionospheric auroral regions and account for some of the observations on pulsating (optical) auroras and X-ray pulsations. It is shown that a good correlation exists between the temporal and spatial variations of particles precipitation and the properties that might reasonably be expected from a drift wave model.
KeywordsParticle Precipitation Geomagnetic Latitude Auroral Zone Magnetospheric Plasma Instability Theory
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