Speaker
Michajlenko V.
Description
Cosmic rays propagate the heliosphere from interstellar space till orbit of planets and Sun.
The problem of their distribution, described by Fokker-Planck equation is solved by a couple
of methods, one of the most used is the stochastic method based on Ito lemma.
Presented work is focused on the estimation of statistical error of Fokker – Planck equation
solution of the 1D forward stochastic method, for evaluation cosmic rays distribution in the
heliosphere. Error dependence on simulation statistics and energy for 1AU is presented. The
1% precision criterium is defined as a function of solar wind velocity and diffusion coefficient
value. The systematic error of the FP equation is also discussed.
