Same as Fig. 9 for the high‐resolution spectra. The S/N for this spectroscopy is quite low (see text), so that some specks are due to noise fluctuations; in particular, the trace ﹩\psi =18^{\circ }﹩ is the noisiest, since it has the lowest maximum intensity (see text). This spectroscopy is mainly useful in conjunction with low‐resolution spectroscopy for better velocity calibration. Compare also with Fig. 2.