Fig. 9
Color–color diagram of objects with error in color smaller than 0.1 (dots). Solid lines are the photospheric colors by Kenyon & Hartmann (1995) at the three E(B − V) values indicated on each line. Filled circles in the upper panel are the NGC 1893 candidate cluster members without circumstellar disk, while error bars in the bottom panel indicate the cluster sequence fiducial line derived as described in the text. The reddening vector obtained using the Munari & Carraro (1996) and Rieke & Lebofsky (1985) reddening laws is also shown.
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