Spatial and spectral profiles: shown are continuum-subtracted Lyα NB images smoothed with a 2D Gaussian Kernel of σ = 1 (top row) and a 1D Lyα emission profile fitted with a double-skewed Gaussian (bottom row). The 1D spectra of the cores for the sources at z = 2.9, 3.6, and 4.8 are extracted using 0.8″, 0.8″, and 0.6″ apertures (solid white circles in the NB images), respectively. These are shown in black solid lines in the bottom row. Dashed gray lines for the sources at z = 2.9 and z = 3.6 show the scaled Lyα spectra of the entire halo. The z = 4.8 LAE, which is a compact source, is covered in its entirety within the 0.6″ aperture. White dashed contours in the NBs indicate the position of the continuum. For the z = 3.6 LAE, three distinct regions are labeled as A, B, and C in the NB image. The colorbars are in units of erg s⁻¹cm⁻² pix⁻² where 1 pix = 0.2″.