Comparison between the LyC escape fraction and two Lyα line properties. Left: LyC escape fraction as a function of Lyα peak separation. The silver and gold-filled dots are from our LyC leaker candidate sample. The gold candidate with a green circle around it is again the object already discovered in Saxena et al. (2022) and discussed in Rivera-Thorsen et al. (2022). The black dash-dotted line is the relation in Izotov et al. (2018b) for low-redshift LyC leakers. Open circles show low redshift objects and filled dots show high redshift objects. The dark green data points are for LyC leakers at z ≈ 3.1 from Fletcher et al. (2019), where they give velocity offsets with respect to systemic redshift, which was multiplied here by two to estimate the potential peak separation, following the correlation found between peak separation and the shift of the red peak with respect to systemic velocity from Verhamme et al. (2018). The dark purple filled circle is from Marques-Chaves et al. (2022) for z = 3.6. The light green open circles are taken from Verhamme et al. (2017), also for low-redshift analogues. The black dots are taken from Flury et al. (2022b), showing the escape fractions based on the COS UV spectra for only their strongest LyC leakers at low redshifts (z ≈ 0.3 − 0.4). Right: LyC escape fraction as a function of the Lyα rest-frame equivalent width. The black dashed line is from Steidel et al. (2018), just as the light green dots for objects at z ≈ 3. The dark green dots are from Fletcher et al. (2019) for objects at z ≈ 3. The open black dots are again taken from Flury et al. (2022b) and the open blue dots are from Pahl et al. (2021) at z ≈ 3.