Energy conversion and magnetic reconnection in space plasmas: Role of nonlinear kinetic processes and structures

Kropotkin, A. P.

doi:10.1134/s001679321404001x

Cited by 3 publications

(1 citation statement)

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“…Such localized short-term plasma flows arise as a result of bursts of magnetic reconnection in the geomagnetic tail, which form extremely thin current structures in the plasma sheet, anisotropic forced kinetic current sheets (FKCS) (Domrin and Kropotkin, 2007;Zelenyi et al, 2016;Kropotkin, 2014;Kropotkin and Domrin, 2009;Domrin and Kropotkin, 2004;Domrin, 1996, 2009;Kropotkin et al, 1997;Nakamura et al, 2006;Zhou et al, 2009). In the central part of such a sheet, under the action of the reconnection electric field, plasma is transported along the sheet to the Earth at a rate close to the local Alfvén speed, i.e., a fast localized short-term plasma flow arises.…”

Section: Physical Mechanismsmentioning

confidence: 99%

The Acceleration of Outer-Belt Electrons by Localized Electric Fields

Kropotkin

2021

Geomagn. Aeron.

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To explain the populations of the outer-belt energetic electrons, including relativistic electrons, that sporadically appear in the magnetosphere, a mechanism was proposed long ago for the acceleration of those electrons by short-term bursts of the electric field, which appear on the night side during substorm disturbances (Kropotkin, 1996). This mechanism can be substantially specified if the modern concepts of bursty bulk flows in the geomagnetic tail, the occurrence of dipolarization fronts, and the excitation of localized field-aligned-resonant poloidal Alfvén oscillations involving a strong component of the electric field in the dawn-dusk direction are taken into account.

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