Top. Fraction of “passive” galaxies as a function of the density contrast. Galaxies are defined “passive” when they have Dn4000 ≥ 1.40. Symbols and lines have the same meaning as in the plots of Fig. 4. Bottom. Fraction of galaxies with log (EW [OII] ) ≥ 1.15 as a function of the density contrast. Symbols and lines as in the top panels.
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