Expected number of lensed galaxies in MACS0416. The larger plot shows the number of lensed galaxies behind MACS0416 at z = 6 (blue curves) and z = 9 (red curves), as a function of magnification (larger plot) or observed absolute magnitude (smaller plot). We assumed a standard luminosity function at each redshift. The different lines are for different limiting magnitudes: −17 (solid lines), −16 (dotted lines), or −15 (dashed lines). In the smaller plot the solid lines are the number of lensed galaxies for each observed magnitude, while the dashed lines are the number of galaxies one would have observed in the same magnitude bins but without lensing magnification.