Modelling of quasi-adiabatic plasma dynamic in current sheets in the solar wind

The quasi-adiabatic dynamics of charged particles in strong current sheets (SCS) in the solar wind (SW), including the heliospheric current sheet (HCS), is modeling. A self-consistent hybrid model in which the ion dynamics is described as the quasi-adiabatic approach, and the motion of magnetized electrons is considered in the leading center approximation is developed. The simulation showed that the SCS profile is determined by the relative contribution of the current of demagnetized protons on open quasi-adiabatic orbits and by the drift current of magnetized electrons. It is shown that a multiscale structure, which is a thin current sheet (TCS), embedded in a thicker plasma sheet (PS), is a universal feature of SCS in SW. These results are in good agreement with the observations of the SCS.