FIG. 3.
Example spectra of formamide transitions observed toward G34.3 (left panels) and W51M (right panels) at 3 and 2 mm in wavelength with the ARO 12 m telescope. The spectral resolution is 500 kHz for all data, except the J=70,7→60,6 transition in W51M, where it is 1 MHz. The quantum numbers for each transition are shown on each panel. The vertical line under each spectrum indicates the average cloud LSR velocity, near 58 km/s for both regions. Other organic molecules can be seen in the data, such as C2H5CN and HCOOCH3.