From left to right: a map of the [C II]_{158 μm} emission, averaged over the velocity ranges (−1400, 1200) km s⁻¹, (−1400, 300) km s⁻¹, and (+400, +1200) km s⁻¹. These velocity ranges are similar to those presented in Cicone et al. (2015), who reported 6σ [C II]_{158 μm} clumps at 2″–4″ from the source center in the blue-/redshifted wings of the [C II]_{158 μm} emission. Such spatially and spectrally offset emission is not recovered in the NOEMA data. The 1σ rms values in the above three maps are 0.27, 0.14, and 0.15 mJy beam⁻¹. This figure shows contours in logarithmic increments (−4, −2, 2, 4, 8, 16, 32)σ (rms).