Fig. 4.
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O32 vs. rest-frame EW0(Hβ). Symbols are the same as in Fig. 3. For reference, we also plot the galaxies at z = 0.3 − 0.4 from Flury et al. (2022; diamonds) and the LCE from Izotov et al. (2016a,b, 2018b,a, 2021), Wang et al. (2019; stars). Symbols are color coded as a function of their measured fesc. The pink line (O32 = 5) indicates the threshold for LCEs as predicted by Flury et al. (2022).
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