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Fig. 6.


Observed and predicted [O III]/[O II] (left) and [O III]/[O I] (right) line ratios as a function of the LyC escape fraction, comparing the observed LyC emitters and the one-zone photoionization models with log(U)≳ − 2.5. We note the very high range of the predicted [O III]/[O I] ratio.

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