Quasilinear theory of non-resonant electromagnetic instabilities

Verheest, Frank ; Kaw, P. K. (1992) Quasilinear theory of non-resonant electromagnetic instabilities Planetary and Space Science, 40 (10). pp. 1479-1482. ISSN 0032-0633

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/003206...

Related URL: http://dx.doi.org/10.1016/0032-0633(92)90101-S

Abstract

Our quasilinear theory includes explicitly macroscopic drifts, which are then modified, together with other equilibrium quantities, by the growth of unstable waves. We study the saturation of nonresonant electromagnetic instabilities, due to streaming effects besides pressure anisotropies. The resulting equations governing the equilibrium changes can be integrated exactly, so that more precise estimates are given for the ultimate levels of magnetic field fluctuations. This is applied to the quenching of streaming low-frequency instabilities in the mass-loaded solar wind near comets.

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