Non-linear behaviour effect on Mach cone behind the body moving in rarefied ionosphere

The problem of rarefied plasma flow near the body in highly rarefied ionized planet atmosphere is considered. Plasma is supposed to be non-isothermal, T_i ? T_e. In the case of thermodynamically non-equilibrium electrons the solution of modified Korteweg-de Vries equation is estimated in the Mach cone region behind the body and it is shown that Mach cone appears to be curved.