Fig. 9.
Comparison between (VGF − IGF) and (u − r) colours. Triangles and solid lines in gray represent LT, squares and dashed lines in black correspond to ET galaxies. Top and right-hand: density histograms correspond to (VGF − IGF) and (u − r), respectively. Dot-dashed lines show the results of linear discriminant analysis of both colours with (VGF − IGF) = 1.7 and (u − r) = 2.5.
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