Document Type : Research Paper

Authors

University of Mosul - College of Science

10.37652/juaps.2009.15552

Abstract

The importance of the gravitational lens in cosmology and astronomy, and a brief
historical review for the evolution of the gravitational lenses have been introduced. The effective
parameters are determined by using the geometrical model of the Point mass gravitational lens. A study
of the effective strength of the geometrical distances ,the source and the lens distances , the distance
between the lens and the source ,and the impact parameter in the distance from the source to the image.
By using the variation of the image distance with respect to the geometrical distance . We concluded
that the strengths effect of these parameters approaching zero at very large distances, except that of
the distance between the lens and the source which seems to be constant. This kind of behavior has
been explained .

 
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