We developed a new multiple-lens plane algorithm for studying the light propagation in inhomogeneous universes. The generated matter distributions has the largest dynamical range in length, and encorporates the constraints imposed by LSS formation models and the observed galaxy distribution. We use this algorithm to perform the largest cosmological parameter survey, i.e. 43 different CDM models, with various combinations of Omega0, lambda0, H0, and sigma8. We propagate light beams and study the gravitational lens (GL) effect in each model. The presented results include (1) the statistics of multi-image events, and (2) the deviation from the standard FL universe. These results depend upon the cosmological parameters. Comparison with the observed GLs might constrain the values of the parameters, thus imposing limits on the physics determining the parameters, and the possible models for the LSS formation.
19th Texas Symposium on Relativistic Astrophysics and Cosmology
- Pub Date:
- December 1998
- 2 pages, gzip'ed tar file, including Latex source file, and style files. To be published in the proceedings of the Tokyo conference on Numerical Astrophysics (1998)