Fig. 18.
FEROS (blue) and STIS (black) spectra of the Hβ region with the continuum and narrow Hβ emission component subtracted from each. The FEROS spectrum has been scaled to match the STIS spectrum in the far blue wing of the emission line. The solid red line tracing the data shows the total emission model with the continuum and narrow emission component subtracted. The velocity scale along the top axis is for the rest wavelength of Hβ relative to the host galaxy systemic redshift, z = 0.00973 (Theureau et al. 1998).
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