Emission line profiles of [CaVIII], [SiVI], Brγ, (extracted from the nucleus with a circular aperture with a radius of 400 mas), 1-0S(1) (extracted from the eastern H₂ region) and a krypton calibration lamp line at 2.148 μm. The spectra were continuum-subtracted by fitting a parabola to wavelength channels to the left and right of the emission lines. In the case of [CaVIII] the continuum was modeled as described in Appendix C to account for absorption of stellar CO bandheads. The emission lines were shifted in velocity to the center of intensity.