Possibility of the Existence of Trapped Radiation near Mercury

The possibility of the existence of radiation belts near a planet possessing an intrinsic magnetic field and located in a stellar plasma flow is considered using Mercury as an example. An analysis is performed both using Stormer’s theory of charged particle motion, in which not the specific trajectories of individual particles, but the regions of allowed motion in an axisymmetric field are considered, and by analyzing the trajectories. The existence of trapped radiation near Mercury is shown to be possible, and the criteria for the formation of a stable population of trapped particles are formulated.