This article has an erratum: [https://doi.org/10.1051/0004-6361/201014703e]
The relative completeness functions. The fraction of galaxies with an observed spectrum of spectroscopic type 1 or 2 for which we could measure velocity dispersions and obtain reliable photometric structural parameters. This relative completeness is shown for the clusters (top row) and the field (bottom row) as a function of galaxy magnitude in the I band in a 1 arcsec radius aperture. Colors code the spectral type (black: 1; red: 2). The full lines indicate the full redshift range, the dotted lines galaxies with z < 0.6, and the dashed lines galaxies with z ≥ 0.6. The dots show the magnitudes of the single galaxies and the assigned completeness weight.
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