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Shell-instability generated waves by low energy electrons on converging magnetic field lines
Vaivads, A.; Bogdanova, Y. V.; Décréau, P. M. E. +3 more
Wave emissions at electron cyclotron harmonics and at frequencies above the local plasma frequency are commonly observed in different magnetospheric regions. We show that such emissions when observed in the cusp, mantle or polar cap can be generated by shell-type electron distributions. We present an example of observations of such shell type dist…
Comment on ``Interplanetary shocks unconnected with earthbound coronal mass ejections'' by T. A. Howard and S. J. Tappin
Gopalswamy, Nat; Akiyama, Sachiko; Yashiro, Seiji +1 more
Abstract Available from http://www.agu.org
Cluster observations of energetic ionospheric ion beams in the auroral region: Acceleration and associated energy-dispersed precipitation
Rème, H.; Dunlop, M.; Bosqued, J. M. +8 more
This paper presents a detailed study of the Feb. 14, 2001 Cluster northern auroral pass at mid-altitudes (4-5 RE), characterized by observations of a series of energy-dispersed ion structures in a region of poleward convection. In contradiction with one current view, that ions populating these energy-dispersed signatures originate spora…