Average radial profiles of the Hα surface brightness stacked according to specific AGN candidates. The shaded regions correspond to the 16th and 84th percentiles of each stacked radial profile. The solid green line corresponds to the AGN selected using a 2 kpc circular aperture, and its shaded area is filled with hollow circles. The black dash-dot line corresponds to the AGN selected by an aperture of 10 kpc, and its shaded area is filled with dots. Finally, the blue dashed line corresponds to the AGN selected by the 10 kpc aperture but excludes the AGN selected by the 2 kpc aperture. The last line has a shaded area filled with hollow squares.