Gravitational Lensing in the metric theory proposed by Sobouti

Details Gravitational Lensing in the metric theory proposed by Sobouti Gravitational Lensing in the metric theory proposed by Sobouti

2008-11-12

arxiv.org/abs/0811.1800v1

Astronomy and Astrophysics

Astrophysics

7 pages, 2 figures

Scientific paper

10.1063/1.3058576

Recently, Y. Sobouti (2007) has provided a metric theory f(R) that can account for certain dynamical anomalies observed in spiral galaxies. Mendoza & Rosas-Guevara (2007) have shown that in this theory there is an extra-bending as compared to standard general relativity. In the present work we have developed in more specific detail this additional lensing effect and we have made evaluations of the alpha parameter used in the model adjusting the theory to observations in X-rays of 13 clusters of galaxies with gravitational lensing (Hoekstra (2007)).

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