Velocity offsets for the individual FELIS template matches of the detected UV emission lines with respect to the object redshift based on the “lead line” of the MUSE LSDCat redshift determinations. For LAEs the Lyα redshift based on the line profile fits by Kerutt et al. (2021). From top left to bottom right the velocity offset for C IV, He II, O III, Si III, and C III with respect to the lead line are shown. For objects with z ≳ 2.9 (vertical dashed line) the lead line of essentially all objects is Lyα. The color coding shows the significance of the FELIS detection in terms of the signal to noise ratio, S/N(FELIS). All Δv estimates were assigned an uncertainty of ±100 km s⁻¹ according to the precision uncertainty coming from the MUSE spectral resolution according to the discussion in Appendix A.3.