Figure 4 from On the Contribution of EMIC Waves to the Reconfiguration of the Relativistic Electron Butterfly Pitch Angle Distribution Shape on 2014 September 12

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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 4.

REPT-B pitch angle distributions on 2014 September 12 from 17:00 to 21:00 UT at 1.80–3.40 MeV energy channels. Before the magnetopause compression (∼17:30 UT), all energy levels presented 90°-peaked PAD shapes. Afterward, as the magnetopause compression progressed, the PAD shapes gradually changed to butterfly-like shapes, which are evidenced here by a local minimum flux at a 90° pitch angle.

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