Integrated intensity maps of CS emission taken with the NRO 45 m telescope. (a) The CS J = 2–1 emission integrated over 9.1–12.6 km s⁻¹. The lowest contour level is 1.12 K km s⁻¹ (3 σ), and the contour spacing is 0.56 K km s⁻¹ (1.5 σ). The positions of VLA 1 and VLA 2 are indicated by crosses. (b) The CS J = 3–2 emission. The velocity range is the same as that in (a). The lowest contour level is 0.56 K km s⁻¹ (3 σ), and the contour spacing is 0.28 K km s⁻¹ (1.5 σ).