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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 3.

MagEIS-B pitch angle distribution on 2014 September 12 from 17:00 to 21:00 UT at 31.9–2249 keV energy channels. Before the magnetopause compression (∼17:30 UT), all energy levels presented 90°-peaked PAD shapes. Afterward, only energies above ∼132 keV presented a butterfly PAD shape, showed here as the dropout in the electron flux at a 90° pitch angle.

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