Integrated emission of the HFLS3 field, using two illustrative wavelength ranges: redshifted Hα for z ∼ 6.34 for the R2700 cube (λ_obs = 4.79954 − 4.84467 μm, upper panel) and the approximate wavelength range of HST/WFC3 F160W for the R100 cube (λ_obs = 1.4 − 1.6 μm; lower panel). The adopted source masks are shown with white boundaries. North is up and east is to the left. The lower panel is nearly identical to the observed HST/WFC3 F160W image, but at a higher spatial resolution (see Fig. A.2).