Hβ line (black solid line) and the Hβ model (red solid line). The Hβ model includes the four components of the [O III] model (see Fig. 2 for a description) and an additional broad redshifted component (magenta triple dot-dashed line). The residuals of the fit are normalized and plotted below the spectrum (black dot-dashed line). The vertical dashed lines marks the restframe wavelength of the emission line.