Evolution of mass loss in OCs for different SFEs with λ₀ = 0.09 (solid lines). Models with r_apo = 10 kpc and e = 0, 0.33, and 0.5 are shown in the upper panels. Models with r_apo = 3 kpc are shown in the bottom panels. Dashed lines represent orbits with initial Z values of 0.2 kpc upper panels) and 0.06 kpc (bottom panels) above the Galactic X − Y plane. Cyan lines represent models with λ₀ = 0.045 for OCs with r_apo = 10 kpc.