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Authors: Kronberg E. A., Grigorenko E. E., Turner D. L., Daly P. W., Khotyaintsev Y., et al.
Title: Comparing and contrasting dispersionless injections at geosynchronous orbit during a substorm event
Abstract: Particle injections in the magnetosphere transport electrons and ions from the magnetotail to the radiation belts. Here we consider generation mechanisms of “dispersionless” injections, namely, those with simultaneous increase of the particle flux over a wide energy range. In this study we take advantage of multisatellite observations which simultaneously monitor Earth's magnetospheric dynamics from the tail toward the radiation belts during a substorm event. Dispersionless injections are associated with instabilities in the plasma sheet during the growth phase of the substorm, with a dipolarization front at the onset and with magnetic flux pileup during the expansion phase. They show different spatial spread and propagation characteristics. Injection associated with the dipolarization. . .
Date: 03/2017 Publisher: Journal of Geophysical Research: Space Physics DOI: 10.1002/2016JA023551 Available at: http://onlinelibrary.wiley.com/doi/10.1002/2016JA023551/full
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