Abstract
Solving numerically the null geodesic equations in an inhomogeneous model universe consisting of galaxies, we study the gravitational lens effect of galaxies on the images of high redshift objects. Morphological studies are done as well as quantitative analyses for the image deformation. For the spatial distribution of galaxies, it is assumed that the present correlation length is about 5h-1Mpc (the Hubble constant H0=100hkms-1Mpc-1). It is shown that the images of the objects with z≥2 can be much deformed in angular sizes of several arcsec. This result shows that the warped structure of ratio images in high redshift quasars may be explained by the gravitational lens effect.
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