Gravitational Lensing Statistics by Galaxy Clusters with Smoothness Parameter Depending on z
Astrophysics
2008-10-17 v1
Abstract
Using the Eikonal approximation we study the effect of the smoothness parameter in the Dyer-Roeder equation. We calculate the optical depth for dark halos with NFW profile, for the abundance the Press-Schechter formalism is used. We focus our analysis on the cross section for multiple images (three). Different cosmologies are compared.
Keywords
Cite
@article{arxiv.0712.1946,
title = {Gravitational Lensing Statistics by Galaxy Clusters with Smoothness Parameter Depending on z},
author = {Monica Valencia and Leonardo Castaneda},
journal= {arXiv preprint arXiv:0712.1946},
year = {2008}
}
Comments
Latex, 4 pages, 3 figures. To appear in the Proceedings of 30th Spanish Relativity Meeting (ERE 2007): Relativistic Astrophysics and Cosmology, Puerto de la Cruz, Tenerife, Spain, Sep 10-14 2007