Flanchik A. The influence of low-frequency oscillations in a vacuum gap at the radio emission and gamma emission of pulsars

The dissertation deals with the investigation of the influence of radio-frequency oscillations excited in a pulsar vacuum gap at the formation of radio and gamma emission of pulsars. The oscillations are excited in the spark processes in the electric field of the vacuum gap, in which the particles from stars’ surface are accelerated. The estimations of the energy density of oscillations in the vacuum gap considered as the resonator for radiation have been obtained. High energy density of the oscillations leads to the important role of the inverse Compton scattering (ICS) of the low-frequency quanta at the electrons accelerated in a vacuum gap. The influence of low-frequency oscillations at the particle acceleration in the vacuum gap has been investigated. The spectral distribution and the total power of the emission arising due to Compton scattering of low-frequency radiation in the vacuum gap have been found. The electron-positron plasma production by hard Compton gamma quanta and the formation of 255 keV annihilation line due to annihilation of the positrons from the vacuum gap with the star surface electrons have been investigated. The influence of low-frequency oscillations on the pulsar turn-off in case when the Compton scattering is the leading mechanism of the energy losses in the vacuum gap has been investigated.