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Fig. 4

image

Distribution of the S11 B/T in the different morphological classes defined by Galaxy Zoo 2 (from top to bottom: Sd, Sc, Sb, Sa, and ellipticals). The histograms have been normalised to the peak. The red dashed histograms describe barred spirals, while the black dashed histograms indicate unbarred spirals. The whole population of barred and unbarred galaxies is described by the black solid histograms.

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