Mosaic of NIFS images; each row for a different emission line. Top row: [Fe II] (1.6436 μm). Bottom row: H₂ (2.1214 μm). Each row consists of six slices, each 90 × 42, covering a range in velocity shift from −60 km s⁻¹ to 90 km s⁻¹, in steps of 30 km s⁻¹. In all cases, the continuum has been subtracted. Velocities are referred to the heliocentric systemic velocity of 5 km s⁻¹.