butterfly distributions

Li, J., Bortnik, J., Thorne, R., Li, W., Ma, Q., Baker, D., et al. (2016). Ultrarelativistic electron butterfly distributions created by parallel acceleration due to magnetosonic waves. Journal Of Geophysical Research: Space Physics, 121, 3212-3222. http://doi.org/10.1002/2016JA022370 (Original work published April 2016)
Li, J., Ni, B., Ma, Q., Xie, L., Pu, Z., Fu, S., et al. (2016). Formation of Energetic Electron Butterfly Distributions by Magnetosonic Waves via Landau Resonance. Geophysical Research Letters, n/a - n/a. http://doi.org/10.1002/2016GL067853 (Original work published April 2016)
Yu, J., Li, L. Y., Cao, J., Reeves, G., Baker, D., & Spence, H. (2016). The influences of solar wind pressure and interplanetary magnetic field on global magnetic field and outer radiation belt electrons. Geophysical Research Letters. http://doi.org/10.1002/2016GL069029 (Original work published June 2016)
Yang, C., Su, Z., Xiao, F., Zheng, H., Wang, Y., Wang, S., et al. (2017). A positive correlation between energetic electron butterfly distributions and magnetosonic waves in the radiation belt slot region. Geophysical Research Letters. http://doi.org/10.1002/2017GL073116 (Original work published March 2017)