Top panel: contributions of the primary and the secondary to the composite flux of AA Dor in the FUSE wavelength range, convolved with rotational profiles using  km s^-1 (Rucinski 2009) and  km s^-1 (calculated from R_sec = 0.1112, Sect. 6). The FUSE resolution was simulated by a subsequent convolution with a Gaussian (FWHM = 0.05 Å). Bottom panel: ratio of the composite flux to the primary’s flux.