Key points are not available for this paper at this time.
The high-velocity cloud complex M has been detected in absorption toward the halo star BD +38°2182 (z=4.4 kpc) with the International Ultraviolet Explorer (IUE) echelle spectrograph. Absorption is seen out to −120 km s −1 in the saturated resonance lines of C II, Si II, and O I. Data on highly ionized species of C IV and Si IV are too noisy to determine the presence or absence of absorption from highly ionized gas at the velocities of complex M. The BD +38°2182 data are compared to similar data for HD 93521, which lies 27 arcmin away, but at a z-distance of only 1.5 kpc
Danly et al. (Fri,) studied this question.