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Fig. 1


Examples for HVC finding charts from our survey. In the upper panel the absorption profiles of Si iii, Si ii, C iv, and C ii are shown. For comparison, Si iv absorption is also displayed. Regions with high-velocity absorption are indicated in blue, with the velocity range indicated with the blue bar in the top panel. We further show the 21 cm emission profile for the same sightlines (middle panel) and the sightline position in the (l,b) plane (lower panel) together with the HVC identification (see Sect. 5.1). The star symbol indicates a blend with another ISM line (S iiλ1259 in the Si iiλ1260 panel, C iiλ1335 in the C iiλ1334 panel). Appendix B contains this plot for all 270 sightlines.

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