Fig. 4

Predicted Lyman continuum escape fraction () from the Lyman series fits (Eq. (5)) vs. O
(O32 = [O III 5007 Å]/[O II 3727 Å]) for the full sample from Paper I. The upper x-axis shows the corresponding linear O32 values. Red circles and blue squares denote confirmed and unconfirmed (i.e., galaxies without LyC observations) LyC emitters, respectively. The correlation (Eq. (15)) has a 3σ significance (p-value < 0.001) and the 95% confidence interval is shown in gray. Overplotted as a maroon dashed line is the empirical relationship from Faisst (2016). The recent fit from Izotov et al. (2018) is also shown as the green dot-dashed line. The relationship derived here predicts lower fesc values at large O32 than the two other relationships.
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