Fig. 11.

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Corrected ξion vs. fesc(LyC) calculated using the multi-parameter fit as described in the text. We find that LAEs that show higher fesc(LyC) have lower measured ξion compared to the sample average, which implies that a significant fraction of escaping ionizing photons will lead to decreased Balmer (and potentially nebular) line strengths at a given star formation rate (e.g. Topping et al. 2022). Additionally, this lack of correlation may also arise due to a time delay between the production and escape of ionizing photons from galaxies, whereby intense star formation activity that produces ionizing photons needs time to clear out channels to also facilitate LyC escape, as has been reported from several high-resolution simulations (e.g. Barrow et al. 2020; Katz et al. 2020; Choustikov et al. 2024).
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