Fig. A.1.
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Distribution in axis ratio of a sample of early-type galaxies. The sample consists of 8078 galaxies from the SDSS, selected by means of cuts in redshift, colour, and Sérsic index, as explained in the text. Measurements of the axis ratio are taken from the de Vaucouleurs model fits of Meert et al. (2015). The model curve is a beta distribution (Eq. A.2) with α = 6.28 and β = 2.05.
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