The Physics of Plasma Injection Events

Kivelson, Margaret G.; Kaye, Stanley M.; Southwood, David J.

doi:10.1007/978-94-009-9519-2_20

Margaret G. Kivelson²,
Stanley M. Kaye² &
David J. Southwood³

Part of the book series: Astrophysics and Space Science Library ((ASSL,volume 78))

215 Accesses
28 Citations

Abstract

In this paper, plasma injection is defined as an increase of particle flux in a detector of finite bandwidth. Injection can result from dynamic processes or from spacecraft penetration of a quasi-static spatial structure produced by a steady magnetospheric convection pattern. ATS-5 particle spectrograms are found to provide examples of plasma injection events of both sorts. Dynamic injection occurs both with and without local magnetic signatures. For events not associated with clear local magnetic signatures, convection theory with a steady or a time-varying uniform electric field can account for the energy dispersion of injected particles with energy <50 keV. The paper concludes with a discussion of the way in which the convection boundaries are related to the substorm injection boundary of Mauk and McIlwain. Several alternative expressions for the local time and K_p dependence of the injection boundary are given.

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Authors and Affiliations

Institute of Geophysics and Planetary Physics and Department of Earth and Space Sciences, University of California, Los Angeles, California, 90024, USA
Margaret G. Kivelson & Stanley M. Kaye
Blackett Laboratory, Imperial College, London, SW7 2AZ, UK
David J. Southwood

Authors

Margaret G. Kivelson
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Stanley M. Kaye
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David J. Southwood
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Geophysical Institute, University of Alaska, C. T. Elvey Building, Fairbanks, Alaska, USA
S.-I. Akasofu

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Kivelson, M.G., Kaye, S.M., Southwood, D.J. (1979). The Physics of Plasma Injection Events. 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_20

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DOI: https://doi.org/10.1007/978-94-009-9519-2_20
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-009-9521-5
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