Bibliography



Van Allen Probes Bibliography is from August 2012 through September 2021

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Fast diffusion of ultra-relativistic electrons in the outer radiation belt: 17 March 2015 storm event


AuthorJaynes, A.; Ali, A.; Elkington, S.; Malaspina, D.; Baker, D.; Li, X.; Kanekal, S.; Henderson, M.; Kletzing, C.; Wygant, J.;
KeywordsMagnetosphere; radial diffusion; Radiation belts; ULF waves; Van Allen Probes
AbstractInward radial diffusion driven by ULF waves has long been known to be capable of accelerating radiation belt electrons to very high energies within the heart of the belts, but more recent work has shown that radial diffusion values can be highly event-specific and mean values or empirical models may not capture the full significance of radial diffusion to acceleration events. Here we present an event of fast inward radial diffusion, occurring during a period following the geomagnetic storm of 17 March 2015. Ultra-relativistic electrons up to \~8 MeV are accelerated in the absence of intense higher-frequency plasma waves, indicating an acceleration event in the core of the outer belt driven primarily or entirely by ULF wave-driven diffusion. We examine this fast diffusion rate along with derived radial diffusion coefficients using particle and fields instruments on the Van Allen Probes spacecraft mission.
Year of Publication2018
JournalGeophysical Research Letters
Volume
Number of Pages
Section
Date Published09/2018
ISBN
URLhttps://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018GL079786
DOI10.1029/2018GL079786