Strong lensing probability in TeVeS theory
Abstract
We recalculate the strong lensing probability as a function of the image separation in TeVeS (tensor-vector-scalar) cosmology, which is a relativistic version of MOND (MOdified Newtonian Dynamics). The lens is modeled by the Hernquist profile. We assume an open cosmology with and and three different kinds of interpolating functions. Two different galaxy stellar mass functions (GSMF) are adopted: PHJ (Panter-Heavens-Jimenez, 2004) determined from SDSS data release one and Fontana (Fontana et al., 2006) from GOODS-MUSIC catalog. We compare our results with both the predicted probabilities for lenses by Singular Isothermal Sphere (SIS) galaxy halos in LCDM (lambda cold dark matter) with Schechter-fit velocity function, and the observational results of the well defined combined sample of Cosmic Lens All-Sky Survey (CLASS) and Jodrell Bank/Very Large Array Astrometric Survey (JVAS). It turns out that the interpolating function combined with Fontana GSMF matches the results from CLASS/JVAS quite well.
Keywords
Cite
@article{arxiv.0712.1633,
title = {Strong lensing probability in TeVeS theory},
author = {Da-Ming Chen},
journal= {arXiv preprint arXiv:0712.1633},
year = {2009}
}
Comments
15 pages, 3 figures, 1 table. Published in JCAP