Poster abstract details

Recently, Sobouti (2006) has provided a metric f(R) theory that can account for certain dynamical anomalies observed in spiral galaxies. Mendoza & Rosas (2007) have shown that this theory can account for an extra bending as compared to standard general relativity. In the present work, we show how this bending occurs in different gravitational lenses applied to different clusters of galaxies. We also make evaluations of the $ \alpha $ parameter used in the model. This is the correct way of evaluating the parameter, since the distribution of the baryonic matter approximates to a spherical symmetric distribution in these systems.