Two-dimensional map of normalized line profiles ofthe strongest Fe ii 3 eV line in terms of normalized intensity for a photometric phase of ϕ_ph = 0.56. The horizontal axis shows the horizontal spatial position within the modeled box. The vertical axis represents the wavelength expressed as Doppler velocity. Emission and absorption are indicated by red and blue lines, respectively. The continuum level is one, and it is shown in white. The mean Doppler velocity is depicted by the dashed line. The standard deviation of the Doppler shift velocities is 6.1 km s⁻¹ .