Abstract
The magnetospheric turbulence — by which we here mean all processes which give rise to scattering in configuration or velocity space of particles and waves — affects the hot plasma strongly in several ways: it redistributes energy between the particles themselves and between particles and waves, it redistributes the hot plasma spatially by giving rise to diffusion and it redistributes the particles in pitch angle. The last mentioned effect is in many ways the most important one. This is because the pitch angle diffusion probably is the main loss mechanism for most of the hot plasma in the magnetosphere. The particles which are scattered into the loss cone disappear into the atmosphere and produce excitations, ionizations and heat. Although acceleration processes near the atmosphere certainly play a major role for the production of particle precipitation in discrete auroral forms (see e g Evans in this volume), most of the worldwide loss of hot plasma to the atmosphere is probably caused by pitch angle diffusion.
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Hultqvist, B. (1975). Some Experimentally Determined Characteristics of the Turbulence in the Magnetosphere. In: Hultqvist, B., Stenflo, L. (eds) Physics of the Hot Plasma in the Magnetosphere. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-4437-7_14
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DOI: https://doi.org/10.1007/978-1-4613-4437-7_14
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