Using the HST archive WFPC2 observations and rotation curves measured by Vogt et al . ( [ 1996 ] ) , we constructed self-consistent light and mass distribution models for three disk galaxies at redshifts z = 0.15 , 0.90 and 0.99 . The models consist of three components : the bulge , the disk and the dark matter . Spatial density distribution parameters for the components were calculated . After applying k-corrections , mass-to-light ratios for galactic disks within the maximum disk assumption are M / L _ { B } = 4.4 , 1.2 and 1.2 , respectively . Corresponding central densities of dark matter halos within a truncated isothermal model are 0.0092 , 0.028 and 0.015 in units M _ { \sun } / pc ^ { 3 } . The light distribution of the galaxies in outer parts is steeper than a simple exponential disk .