Contour channel maps of the emission of the F = 5/2–(−5/2) hyperfine component of the C¹⁷O J = 1–0 transition,overlapped with the gray scale image of the 1.3 mm dust emission. Contours are − 4, − 2, and from 2 to 18 by steps of 2σ, where σ is 10 mJy beam⁻¹. The synthesized beam is shown in the bottom left panel as a filled ellipse. The v_LSR channel velocities are shown in the top left part of the panels.