Effective yield as a function of M_star (left panel) and V_circ (right panel). Galaxies are coded by gas fraction, F_g, as shown in the vertical color bar. MAGMA medians are shown as a heavy gray line, with ±1σ excursions as the surrounding gray regions. Also shown in the left panel as two dashed curves are the predictions from the Δη and ζ_w parameterizations (see also Fig. 3), with the symmetric Δη priors given as a short-dashed (purple) curve, and the Δη ≥ 0 priors as a long-dashed (orange) one. The right panel illustrates galaxies with high star-formation efficiency (short gas depletion times) with a blue dashed curve, and those with low efficiency (long depletion times) as a red one. The horizontal short-dashed line corresponds to the yield of 0.037 adopted in this paper. See text for more details.