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Fig. 5.

image

Effect of atmospheric correction on colors based on UBVRI photometry. M1 and M2 are the first and second magnitude used to build a given color (e.g., M1 = U and M2 = B for color (U = B)). The subscripts (1.0 and 1.1) correspond to the airmass adopted for the computation of the atmospheric corrections. Δcolor is the color difference relative to the models shown by red triangles.

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