Outflow map and optimized [CII] spectrum. Left panel: [CII] outflow map made with v = [−500,−1000] km s⁻¹ with green contours at −3, −2, 2, 3,  and 4σ, with σ = 0.034 mJy beam⁻¹, and dashed black contours from the full [CII] map, as in the top left panel of Fig. 2. Right panel: the [CII] spectrum was extracted from a central region of 1.2 arcsec radius and binned at 40 km s⁻¹. The solid blue line is the total fit, composed of two Gaussian components (narrow, as a dashed red line; broad, as a dashed green line). The broad component is associated with an outflowing emission.