Fig. 5
Extinction AKs vs. distance in the investigated area for 662 RCGs identified by combining the 2MASS and WISE magnitudes. The vertical line designates the accepted position of the nearest layer of dust at 130 pc. The two broken curves designate RCGs at the limiting magnitudes Ks = 12 and 12.5. The distance of the Perseus Arm is the average value from Reid et al. (2014) and Vallée (2014).
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