Detailed spectra of CO, CH, and H I for the positions in Figure 5. The thick gray line is ¹²CO, the thick black line is ¹³CO, the thin blue line is CH, and the thin red line is H I. The ¹²CO profiles are reported without any rescaling, but the CH was multiplied by a factor of 60-130, depending on the position, so it is possible to compare with ¹²CO. Similarly, the HI was multiplied by a factor of 0.15 for all positions.