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On the Contribution of EMIC Waves to the Reconfiguration of the Relativistic Electron Butterfly Pitch Angle Distribution Shape on 2014 September 12—A Case Study

  • Authors: Claudia Medeiros, V. M. Souza, L. E. A. Vieira, D. G. Sibeck, A. J. Halford, S.-B. Kang, L. A. Da Silva, L. R. Alves, J. P. Marchezi, R. S. Dallaqua, P. R. Jauer, M. Rockenbach, O. Mendes, M. V. Alves, A. Dal Lago, M.-C. Fok, S. G. Kanekal, D. N. Baker, and C. A. Kletzing

2019 The Astrophysical Journal 872 36.

  • Provider: AAS Journals

Caption: Figure 12.

Comparison of electrons PAD at different energy levels from the REPT and MagEIS instrument on board Van Allen Probe B on 2014 September 12 from 17:00 to 21:00 UT. (a) Normalized PAD electron flux at the 466.8 keV energy level. (b) Sequences of PAD during the interval selected in the black box above (19:40–20:31 UT) representing the beginning of EMIC waves. (c) Normalized PAD electron flux at the 1.80 MeV energy level. Butterfly PAD at (d) 1.80 MeV energy channel. The solid line represents the instant before EMIC waves, and the dotted line during EMIC waves shown in (c) as black arrows.

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