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Table 3

Covering fractions of individual ions in HVCs.

Ion a fcb log Nminc

C ii 21/30 0.70 13.20
C iv 12/30 0.40 13.00
O i 14/29 0.48 13.65
Si ii 20/30 0.67 12.25
Si iii 21/30 0.70 12.15
Si iv 6/30 0.20 12.90
Mg ii 10/19 0.53 12.70
Fe ii 10/21 0.48 12.90



Number of HVC detections above column-density. threshold/total number of sightlines;


covering fraction;


minimum column density threshold considered.

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