Global-scale coherence modulation of radiation-belt electron loss from plasmaspheric hiss

Simultaneous measurements of structured radiation-belt electron losses (in the form of bremsstrahlung X-rays) and plasmaspheric hiss (which causes the losses) reveal that the loss dynamics is coherent with the hiss dynamics on spatial scales comparable to the size of the plasmasphere. The Van Allen radiation belts, consisting of energetic particles trapped in the Earth's magnetosphere, partly overlap with the plasmasphere, a region of high...