Spectra of all transitions of TiO covered in the SMA survey and the PdBI spectrum. The shaded area is the range over which the spectra were integrated. Overlayed on the measured spectra are theoretical Gaussian profiles (in blue) plotted on the assumption of LTE at 1000 K. The ordinate is flux density in Jy. Spectra correspond to the aperture of 1′′  ×  1′′ (SMA data) or to the full PdBI beam of 49  ×  22 (PdBI data). The SMA spectra were Hanning smoothed.