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Authors: Ren Jie, Zong Qiu-Gang, Miyoshi Yoshizumi, Rankin Robert, Spence Harlan E, et al.
Title: A comparative study of ULF waves' role in the dynamics of charged particles in the plasmasphere: Van Allen Probes observation
Abstract: By analyzing observations from Van Allen Probes in its inbound and outbound orbits, we present evidence of coherent enhancement of cold plasmaspheric electrons and ions due to drift‐bounce resonance with ULF waves. From 18:00 UT on 28 May 2017 to 10:00 UT on 29 May 2017, newly formed poloidal mode standing ULF waves with significant electric field oscillations were observed in two consecutive orbits when Probe B was travelling inbound. In contrast to observations during outbound orbits, the cold (< 150 eV) electorns measured by the HOPE instrument were characterized by flux enhancements several times larger and bi‐directional pitch angle distributions during inbound orbits. The electron number density inferred from upper hybrid waves is twice as larger as during inbound orbits, which w. . .
Date: 06/2018 Publisher: Journal of Geophysical Research: Space Physics DOI: 10.1029/2018JA025255 Available at: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018JA025255
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