Fig. 5

Contour plot of CN J = 2−1 integrated emission between 15 and 45 km s-1 (shadowed areas; Martín et al. 2012), with overlay of OH absorption at 50 km s-1 at 1667 MHz. Three CN J = 2−1 blobs fall inside, or partly inside, of the OH-streamer, and one is immediately S of the tail. The lowest contour level of CN J = 2−1 emission is ~3σ, and ~4σ of OH. Sgr A∗ is marked with a plus sign. The CN emission and the head and mid parts of the OH-streamer are seemingly parallel to the Galactic plane.
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