Integrated maps of the observed strip. The left map shows the gas column density derived from the Hi-GAL observations. The circles there indicate the position and effective beam size of the spectra discussed in Fig. 4. The following maps give the line-integrated intensities of the CO 2−1, ¹³CO 2−1, C¹⁸O 2−1, and [C I] 1−0 transitions. The colors represent the integrated intensity for the main velocity component from 11 to 17 km s⁻¹. The black and white contours show the integral over the component from 18 to 22 km s⁻¹, and the orange and red contours show the integral from 34 to 38 km s⁻¹. The zero position in the plots is at RA(J2000) = 7:10:39.8, Dec(J2000) = −11:27:09.