Right panel: Integrated intensity map of Anomaly B at V_LSR = 97.5 km s⁻¹ in the CS J = 2–1 emission line (upper part) and the eastern arm at V_LSR = 87.5 km s⁻¹ in the H42α recombination line (lower part). The central velocities are shown at the upper-left and lower-right corners of the upper and lower parts, respectively. The velocity widths of the two parts are 10 km s⁻¹. The red dashed ellipse shows the elliptical outline of the CND. The white contours show the continuum emission at 100 GHz of the GCNS at 100 GHz for comparison (Tsuboi et al. 2016). Upper-left panel: P–V diagram along Anomaly B in the CS J = 2–1 emission line. The sampling area is shown by the upper red rectangle in the right panel. Lower-left panel: P–V diagram along the eastern arm in the H42α recombination line. The sampling area is shown by the lower red rectangle in the right panel. (Color online)