Van Allen Probes Bibliography is from August 2012 through September 2021 Notice:
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The Link between Wedge-like and Nose-like Ion Spectral Structures in the Inner Magnetosphere
Author | Ren, Jie; Zhou, Xu-Zhi; Zong, Qiu-Gang; Yue, Chao; Fu, Sui-Yan; Miyoshi, Y.; Zhang, Xiao-Xin; Asamura, K.; Shinohara, I.; |
Keywords | Van Allen Probes |
Abstract | AbstractThe wedge-like and nose-like ion spectral structures, named after their characteristic shapes in the energy-time spectrograms, appear to be distinctively different structures in the Earth s inner magnetosphere. Here we present a case study with conjugate observations from the Arase spacecraft and the twin Van Allen Probes on July 1 and 2, 2017, which displayed the characteristic signatures of the wedge-like and nose-like ion structures, respectively. When the spacecraft nearly intersected at L =2.8, the two structures overlapped with enhanced ion fluxes in the energy range of 1-10 keV. These observations suggest that the wedge-like and nose-like spectral signatures are merely the manifestations of one single structure along different spacecraft trajectories. This finding is further validated by the reproduction of both structures from a particle-tracing model, which also indicates their formation processes associated with the intermittent substorm injections in the nightside magnetosphere. |
Year of Publication | 2021 |
Journal | Geophysical Research Letters |
Volume | n/a |
Number of Pages | e2021GL093930 |
Section | |
Date Published | 06/2021 |
ISBN | |
URL | https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2021GL093930 |
DOI | https://doi.org/10.1029/2021GL093930 |