Left column: ¹²CO J = 3−2 a); ¹³CO J = 3−2 b); HCO⁺J = 4−3 c); and CS J = 7−6 d) spectra obtained towards the 2′ × 2′ region (white box in Fig. 1) mapped with ASTE. Right column: spectra towards the position (0, 0) of the four transitions smoothed to a velocity resolution of 0.22 km s^-1. The single or multiple-component Gaussian fits are shown in red. The dashed line marks the systemic velocity of the molecular cloud. All velocities are in Local Standard of Rest.