Denis B. Sobyanin
Moscow Institute of Physics and Technology (State University)
In the talk I consider processes of creation of relativistic electrons and positrons in a superstrong magnetic field, processes of photon splitting in this field, and their effect on the pair creation. Motion and primary accumulation of particles in the vacuum magnetosphere of a neutron star are studied with account of the self-interaction effects. Processes of particle capture by the force-free surface are considered. The "flash" formation is described, which is triggered by the photons of the outer cosmic gamma-ray background absorbing in the magnetosphere. A self-consistent source of electron-positron pairs is computed with account of the particle creation by curvature and synchrotron photons. The restrictions on multiplicity in the plasma tube are found, and the characteristic time of filling the magnetosphere is evaluated. Theoretical predictions are compared to available observational data.
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