Stellar mass to 1D stellar velocity dispersion measured within a cylindrical volume with a 10 kpc aperture along with z-axis (σ_{*, z, 10 kpc}) relations of galaxy subhalos in (a) EAGLE-50, (b) EAGLE-eAGN-dT, (c) EAGLE-eAGN-Visc, (d) EAGLE-wAGN, and (e) EAGLE-NoAGN. White circles show the median σ_{*, z, 10 kpc} at each stellar mass bin. Bold, dashed black lines show the central 95% of the σ_{*, z, 10 kpc} distributions. Vertical dotted lines indicate the stellar mass limit we applied. Horizontal dotted lines mark the velocity dispersion limit where the stellar mass limit intersects with the 95% upper limit of the velocity dispersion distributions. Below this velocity dispersion limit, our EAGLE galaxy samples are incomplete in terms of velocity dispersion. The subhalos in the shaded region are excluded from the σ_* complete sample. The dashed blue lines indicate the M_* − σ_* relation for TNG100 (Sohn et al. 2024a), and the solid gray lines show the observed M_* − σ_* relation for SDSS quiescent subhalos in the local Universe (Zahid et al. 2016).