Nature Communications (Jun 2020)
Magnetic pumping model for energizing superthermal particles applied to observations of the Earth's bow shock
Abstract
Energetic particle generation is an important component of a variety of astrophysical systems. Here, the authors show when magnetic pumping is extended to a spatially-varying magnetic flux tube, magnetic trapping of superthermal particles renders pumping an effective energization method for particles moving faster than the speed of the waves.