Top left: flux map of the emission line Brγ λ2.16612 μm. Overlaid are the radio contours from Jenkins et al. (2011), which have an angular resolution of . Bottom left: spectra near λ = 2.16612 μm extracted from apertures I1-4 and N indicated in the flux map from north-west to south-east of the nucleus. For the I1-2 and N apertures at nucleus and to its north-west a line split is detected and a double-component Gaussian is used to fit the emission line. Top right: flux map of the emission line Hα λ6562.8. Bottom right: spectra of Hα from the apertures indicated in the emission line flux map with spectral and angular resolutions of R = 7000 and 1″ (Dopita et al. 2015), respectively; the spectra are extracted from 1″ × 1″ pixels. The green dotted lines show the rest wavelength of the emission lines. At the nucleus and NW a line split is detected and the emission lines need to be fitted with two-component Gaussian profiles (data from S7; Thomas et al. 2017).