[1]Previous studies on electromagnetic ion cyclotron (EMIC) waves as a possible cause of relativistic electron precipitation (REP) mainly focus on the time evolution of the trapped electron flux. However, directly measured by balloons and many satellites is the precipitating flux as well as its dependence on both time and energy. Therefore, to better understand whether pitch angle scattering by...

The recent spacecraft observations by MMS and Van Allen Probes associated with electromagnetic ion cyclotron (EMIC) waves in the Earth magnetosphere emphasize important role of multi-ion plasma composition for generation characteristics these emissions. We show that main properties coherent EMIC can be explained concept “multi-ion oscillitons” (Sauer et al., 2001, https://doi.org/10.1029/2001GL...