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Fig. 3

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Redshift distribution of the MASSIV samples (filled histograms) compared with the parent (i.e. restricted to the 0.9 − 2.0 redshift range) VVDS samples (white histograms). From top to bottom: complete (magenta), Wide (green), Deep (red) and Ultra-Deep (blue) MASSIV and VVDS samples. Histograms are arbitrarily normalized. The redshift distributions of MASSIV reflect the selection criteria, but are also importantly affected by the observability of the target emission lines (mainly Hα, [O iii]λ5007 in a few cases) in the NIR atmospheric bands (explaining the gap around z ~ 1.1) and between the OH night sky lines. MASSIV galaxies are distributed in the redshift range between z ~ 0.94 and 1.80, with the exception of VVDS220148046 which has a redshift z = 2.24 (see text for details).

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