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Drift-Alfvén vortices at the ion Larmor radius scale

Krasnoselskikh, V. V.; Pokhotelov, O. A.; Onishchenko, O. G.

The theory of nonlinear drift-Alfvén waves with the spatial scales comparable to the ion Larmor radius is developed. It is shown that the set of equations describing the nonlinear dynamics of drift-Alfvén waves in a quasistationary regime admits a solution in the form of a solitary dipole vortex. The vortex structures propagating perpendicular to …

Transport of transient solar wind particles in Earth's cusps

Dandouras, I.; Rème, H.; Parks, G. K. +7 more

An important problem in space physics still not understood well is how the solar wind enters the Earth's magnetosphere. Evidence is presented that transient solar wind particles produced by solar disturbances can appear in the Earth's mid-altitude (~5 R_E geocentric) cusps with densities nearly equal to those in the magnetosheath. That t…