Spatial profiles of the stacked Gold_EL Lyα emitters at ﹩\langle z\rangle \;=\;7.2﹩ (left, green curve) and their observed NIR (rest-frame UV) direct images (right, green curve). In the top panels these profiles are compared to the PSF represented by the spatial profile of stars (blue curves) in the GLASS fields of view. The red curves show the convolved PSF (multiplied by a constant C) that minimizes the ﹩{\chi }^{2}﹩ between the PSF and the data. Both the Lyα and the rest-frame UV profiles from the GLASS stacks are unresolved. Hence, taken at face value, there is no evidence that the spatial extent of Lyα is more extended than the UV light in the GLASS stack. The bottom panels show a comparison to the median LARS Lyα and rest-frame UV profiles at z = 7.2 (see Section 10.1). The shaded area around the profiles shows the 1σ spread of the individual profiles. The median error on the GLASS stacks (from the top panel’s green shaded region) is represented by the gray band. Based on this comparison, we conclude that the extended Lyα emission surface brightness typical of lower-redshift Lyman break galaxies is too faint to be detected in this GLASS stack.