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Electron decay and loss; resonant scattering; resonant wave-particle interactions; unusual low-frequency hiss
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Full-Text Articles in Physical Sciences and Mathematics
Resonant Scattering Of Energetic Electrons By Unusual Low-Frequency Hiss, Binbin Ni, Wen Li, R. M. Thorne, J. Bortnik, Qianli Ma, Lunjin Chen, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Geoffrey Reeves, Harlan E. Spence, J. B. Blake, Joseph F. Fennell, S. Claudepierre
Resonant Scattering Of Energetic Electrons By Unusual Low-Frequency Hiss, Binbin Ni, Wen Li, R. M. Thorne, J. Bortnik, Qianli Ma, Lunjin Chen, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Geoffrey Reeves, Harlan E. Spence, J. B. Blake, Joseph F. Fennell, S. Claudepierre
Physics & Astronomy
Abstract
We quantify the resonant scattering effects of the unusual low-frequency dawnside plasmaspheric hiss observed on 30 September 2012 by the Van Allen Probes. In contrast to normal (∼100-2000 Hz) hiss emissions, this unusual hiss event contained most of its wave power at ∼20-200 Hz. Compared to the scattering by normal hiss, the unusual hiss scattering speeds up the loss of ∼50-200 keV electrons and produces more pronounced pancake distributions of ∼50-100 keV electrons. It is demonstrated that such unusual low-frequency hiss, even with a duration of a couple of hours, plays a particularly important role in the decay and …