Table 3: Main characteristics of the selected DBs (central depth $A_{\rm C}$ and normalised equivalent width EW/E(B-V)), as measured towards the prototype star HD 183143 (Herbig 1995).
    HD 183143 This work
DB $\lambda_0$ $A_{\rm c}$ EW/E(B-V) EW/E(B-V) r
(Å) (Å)   (Å/mag) (Å/mag)  
5780 5780.37 0.32 0.63 0.46 0.74
5797 5796.96 0.20 0.19 0.17 0.73
5850 5849.80 0.069 0.06 0.061 0.75
6196 6195.96 0.084 0.06 0.053 0.82
6284 6283.85 0.32 1.5 0.90 0.69
6379 6379.29 0.10 0.096 0.088 0.62
6614 6613.56 0.24 0.29 0.21 0.80
6993 6993.18 0.14 0.14 0.12 0.95
7224 7224.00 0.21 0.29 0.25 0.99
$A_{\rm c} = 1 - F(\lambda_{0}$) / F (continuum).
The reference wavelengths are taken from Galazutdinov et al. (2000) (Col. 2). The equivalent width per extinction unit (this work) derived from published data from Jenniskens & Désert (1994), Weselak et al. (2001), Thorburn et al. (2003) and Megier et al. (2005) is given for each DIB in Col. 5, with corresponding correlation coefficients in Col. 6.


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