Dynamics of solar cosmic ray energetic spectra during the solar flare on January 20, 2005

摘要

Propagation of cosmic rays in the interplanetary space that accelerated during the solar flare on January 20, 2005 is investigated based on the kinetic equation. The cases of instantaneous and continuous particle injection into the interplanetary medium are considered. Based on the analytic solution of the kinetic equation, it is shown that there is a sharp increase in the cosmic ray intensity in the Earth's orbit in the case of the instantaneous particle injection, while their concentration increases gradually in the case of the continuous particle injection. The dynamics of the energy distribution of solar cosmic rays is analyzed.