Left: comparison between the best PPXF fit (blue) for an off-center spaxel of the F170LP data of Centaurus A (at a radius of 0.15″) of an uncorrected cube (top,gray) and one corrected using WICKED (bottom, red). The wiggles in the uncorrected cube bias the ability of PPXF to obtain a good velocity dispersion and cause the code to incorrectly identify emission lines (e.g., the [OIII] line ). The wiggles also impacts the LOSV, having a value in disagreement with the stellar rotation of V = 531 ± ΔV ≈ 25 km s⁻¹ found in Cappellari et al. (2009). Right: absolute difference between the LOSV (black squares) and velocity dispersion (red triangles) for the binned spectra within 0.5″, comparing uncorrected and WICKED-cleaned spectra. The mean absolute difference for the LOSV (black dashed line) is ~181 km s⁻¹, while for the velocity dispersion, it is ~104 km s⁻¹. These values are ~17× and ~30× larger, respectively, than the propagated uncertainties of ~8 km s⁻¹.