Fig. 4
Correlation between the DIBs at 6614 and 6196 Å. The dashed line represents the relation found by McCall et al. (2010; grey dots) and the grey area shows the 1σ errors to the fit. The blue circles represent the sightlines towards objects with circumstellar disks, the green triangles towards stars with IR excess longwards of 2.5 μm, and the black squares towards OB stars.
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