Image Details
 
                    Caption: Fig. 6.
Extinction curves for the stars in the SD region (left) and in the rest of the sample (right) are plotted. Two sight lines, toward HD 151805 and 161653, in the SD region show normal CCM (﹩R_{V}=3.1﹩) extinction. The dust along those sight lines is not located in the same volume of space as the SD‐type dust, so they are plotted with the non–SD region sample.
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