Peak-flux spectra, shown without FAF on the left and with FAF on the right. Panels (a) and (b) show these spectra (with the spectra generated without background subtraction shown in gray), while (c) and (d) show the fits to those spectra. The total fit is shown in black, with the spectral components added as shown in the legend. These fits have their respective residuals shown below to further illustrate fit quality.