FWHM of the Gaussian fitted to the principal peak of the light profile for the ISAAC emission line spectra. Upper panel: Paβ line. Bottom panel: [FeII] line. Solid lines: PA1 curves. Dotted lines: PA2 curves. Dot-dashed lines: PA3 curves. The horizontal dashed lines denotes 1.1 times the PSF FWHM.
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