Stellar and gas masses of centrals and satellites shortly after infall. Top panel: The solid black line and the shaded regions correspond to the median of the distribution for central galaxies and the 16th and 84th percentiles, respectively. The orange line shows the median stellar mass for all satellite galaxies, while the blue line shows only satellites with m_sub/m_peak > 0.97 (representing satellites shortly after infall). Bottom panel: The same comparison is shown for gas mass normalised by peak subhalo mass. The lower panel in each figure shows the ratio of the coloured lines to the black line (central galaxies).