Fig. 2
(r − i, g − r) color–color diagram for objects monitored at CFHT. Empirical dwarf color sequences from Covey et al. (2007) and Kraus & Hillenbrand (2007) are shown as black crosses and blue triangles, respectively. The reddening vector is traced based on the reddening parameters in the SDSS system provided by the Asiago Database on Photometric Systems (ADPS; Fiorucci & Munari 2003).
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