Profile of the Hα line in the spectrum of the scattered radiation with (solid) and without (dots) assuming dust motion: a) line profile transformation due to a radial outflow with velocity v = 100 km s^-1; b) line profile transformation due to rotation (u = 100 km s^-1); c) line profile of direct radiation in the absence of dust scattering. The angle between the symmetry axis and the direction to the scattering particle is i′ = 40°, the angle between the symmetry axis of the disk and the line of sight is i = 80°.