Example of application of RCG selection from PPMXL survey in a K vs. J − K color–magnitude diagram. This case is for the direction ℓ = 125°, b = 2°, at one particular K-magnitude mK,0 = 13.0, giving a maximum of counts within RCG region at (J − K)0 = 1.25. The dashed rectangle represents the area where the RCGs are selected.
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