Abstract
We briefly review recent progress with regard to three central problems involving the dynamics of low-energy (≲50 keV) magnetospheric plasma: (1) the source of plasma-sheet plasma, including magnetopause boundary layers; (2) dynamics of plasma-sheet plasma in the tail; (3) injection of the ring current. We present a general theoretical picture of how particles of ionospheric or solar-wind origin circulate around the magnetospheric system, become energized, and eventually escape. We conclude that the convection picture naturally implies that a significant fraction of plasma-sheet ions come from the ionosphere. The ring-current injection is discussed in terms of observations and recent computer-simulation results.
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Wolf, R.A., Harel, M. (1979). Dynamics of the Magnetospheric Plasma. In: Akasofu, SI. (eds) Dynamics of the Magnetosphere. Astrophysics and Space Science Library, vol 78. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-9519-2_8
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DOI: https://doi.org/10.1007/978-94-009-9519-2_8
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