Completeness of our catalogues based on the luminosity function of their galaxies depending on the co-moving distance. Dashed black line: completeness function of the 2MRS catalogue, which is only affected by the Malmquist bias. Solid red line: completeness function of SDSS, which is affected by the Malmquist bias and a saturation limit. Dotted blue line: Malmquist bias for SDSS. Dashed green line: saturation bias for SDSS. Dashed-dotted cyan line denotes the point, when the impact of saturation limit on the completeness function of SDSS becomes negligible (the saturation limit completeness rises about 95%). Dotted magenta line: maximum depth of catalogue (z = 0.11).
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