21cm-LAE cross-power spectrum at z = 7 and 8 for the faint galaxy (MHDEC, left) and bright galaxy (MHINC, right) reionisation scenarios (Hutter et al. 2023a) and different minimum observed Lyman-α luminosities of L_α^min = 10^41.0 erg/s (dotted lines), 10^42.0 erg/s (dash-dotted lines), 10^42.8 erg/s (solid lines). Shaded regions depict the observational uncertainties for a spectroscopic survey (σ_z = 0.001) covering a FoV of 25 deg² assuming the SKA-Low1 AA4 antenna layout and a moderate foreground model, see Section 3. The cross-power spectrum values shown are interpolated from 65 and 68 linearly spaced k bins (following the k binning described in Section 3) at redshifts z = 7 and 8, respectively, and smoothed with a Gaussian kernel of standard deviation σ = 1 bin.