Fig. 10.

Comparison between the strength of the DIBs at λ5780 (top) and at λ5797 (bottom) and the reddening of the ionised gas (left) and the stars (right). Uncertainties for the gas reddening range typically between 0.06 and 0.14 dex. Uncertainties for the λ5780 and λ5797 equivalent widths were ~50 and ~40 mÅ, respectively (see Sec. 3.3).
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