Next: Determination of the stellar Up: Results. ... Their values taken from Lipunov (1992) are shown in table 1. ... For Vela X-1 and Her X-1 values of magnetic field, B , coincides with the values that we used when radii of NS's are and correspondently. ... Characteristic time for the wind-accreting systems can be determined from the equation: . ... These velocities are close to obtained using estimates of the 'diffusion coefficient'. These characteristic time scales are also shown in table 3. ...