Light Propagation in Inhomogeneous Universes
Abstract
We developed a new multiplelens 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 Omega_{0}, lambda_{0}, H_{0}, and sigma_{8}. We propagate light beams and study the gravitational lens (GL) effect in each model. The presented results include (1) the statistics of multiimage 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.
 Publication:

19th Texas Symposium on Relativistic Astrophysics and Cosmology
 Pub Date:
 December 1998
 arXiv:
 arXiv:astroph/9807127
 Bibcode:
 1998tx19.confE.536P
 Keywords:

 Astrophysics
 EPrint:
 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)