Relation between the baryonic mass and characteristic size (effective radius for galaxies, mean radius for galaxy groups) of our sample. Different symbols represent different datasets: galaxy groups (large diamonds), MaNGA ellipticals (circles), ATLAS^3D ellipticals (squares), Virgo dwarfs (upward triangles), Fornax dwarfs (downward triangles), and Local Group dwarfs (small diamonds). The color coding represents the median baryonic gravitational acceleration, log₁₀(⟨g_bar⟩), within the effective radius (or the mean radius for galaxy groups).