Relation between Δmcut and the equivalent width of the line (EW). From upper left to lower right: Hα at 0 < z < 0.017, [O III] at 0.3 < z < 0.35, Hβ at 0.33 < z < 0.39, and [O II] at 0.74 < z < 0.81. The solid lines represent the median EW for the (emitters) sample with Δm > Δmcut; the shaded areas represent the 1σ value of the distribution.
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