Analytic fits to satellite galaxy evolution at z = 1. This figure is similar to Fig. 5, but shows the evolution of the stellar mass as a function of v_max/v_infall, the gas mass as a function of m_sub/m_infall, and the r- and U-band magnitudes as a function of v_max/v_infall for galaxies with 11.5 < log(m_peak/h⁻¹M_⊙) < 12.0 at z = 1. The symbols represent the data from the MTNG simulation, as shown in Fig. 3, while the dash-dotted lines represent the analytic models described in Sect. 3.2. The different colours represent different host halo masses, as labelled. As a reference, the dotted orange line shows the evolution of the intermediate-halo mass sample at z = 0.