Fig. 14.
Incidence rate of galaxies with O32 above the metallicity-dependent threshold for three equally sized redshift-selected subsets, with median redshifts of z = 0.42 (green), z = 0.63 (purple), and z = 0.74 (orange) and the entire SDSS comparison sample (red) with median redshift z = 0.03. The vertical lines reflect the 1-σ errors in each bin.
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