Sizes and SFRs of the 158 galaxies selected from the overall TNG50 galaxy population. Left: size-mass relation for the selected TNG50 for the mocks where the sizes are half-SFR sizes (calculated in face-on projection and without any dust attenuation). The open (solid) squares represent the z = 0.5 (z = 1) galaxies where the sizes for the z = 0.5 galaxies are adjusted to z = 1 according to the (1 + z)^−0.5 evolution found by van der Wel et al. (2014). The background gray points and contours represent the size-mass distribution for the z = 1 TNG50 galaxy population. The solid line (gray band) represents the size-mass relation for late types from Mowla et al. (2019) (van der Wel et al. 2014), respectively. Right: SFR-mass or “main-sequence” relation for the selected TNG50 galaxies (red dots, where SFRs for the z = 0.5 galaxies are adjusted to z = 1 according to the (1 + z)^2.2 evolution found by Whitaker et al. 2014). The background gray points and contours represent the SFR-mass distribution for the z = 1 TNG50 galaxy population. For comparison, we show with the gray band the z = 1 main-sequence from the MUSE UDF analysis of Boogaard et al. (2018).