Collisionless conductivity and stochastic heating of the plasma sheet in the geomagnetic tail

Details Collisionless conductivity and stochastic heating of the plasma sheet in the geomagnetic tail Collisionless conductivity and stochastic heating of the plasma sheet in the geomagnetic tail

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9615811h&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 96, Sept. 1, 1991, p. 15,811-15,829.

Physics

36

Collisionless Plasmas, Current Sheets, Geomagnetic Tail, Plasma Layers, Solar Terrestrial Interactions, Magnetic Field Reconnection, Magnetic Storms, Plasma Heating, Solar Wind, Stochastic Processes

Scientific paper

The chaotic single particle orbits in the geomagnetic tail are used to calculate the collisionless conductivity. It is shown that the stochasticity from inhomogeneous magnetic fields leads to a power law decay of the single particle correlation function similar to an elastic collisional process. The height-integrated dissipative part of the collisionless conductivity governs the irreversible stochastic heating of the plasma sheet. Both exponentially growing reconnection type magnetic perturbations and a sinusoidal pulse with a half period up to 1 hour in duration are used to analyze the plasma sheet heating.

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