Lyα halo (purple dots) and UV continuum (grey dots) scale lengths as a function of redshift. The median scale lengths in 3 redshift bins (z< 4, 4 ≤ z< 5, z ≥ 5) of both Lyα and UV continuum emission are indicated by the star symbols (error bars correspond to the median absolute deviation). The corresponding numerical values are given at the top and bottom of the figure for the Lyα and UV continuum emission, respectively. The objects with scale length upper limits are not taking into account for the median calculations.