Fig. 1
Top panel: position of the CID candidates in the dereddened colour–colour diagram together with the stellar locus based on 26 million Star colours (i.e. 10% of the stellar content of SDSS). The arrow denotes the extinction (Schlafly & Finkbeiner 2011). Bottom panel: contour lines for the CID candidates (thick) and 10% of the stellar content of SDSS (thin dashed).
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