Gravitational lensing due to dark matter modelled by vector field

Details Gravitational lensing due to dark matter modelled by vector field Gravitational lensing due to dark matter modelled by vector field

2006-03-31

arxiv.org/abs/gr-qc/0603128v2

Class.Quant.Grav. 23 (2006) 7417-7430

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

17 pages, LaTeX iopart class, 10 eps figures; explanaitions and discussion are extended and improved, reference added; version

Scientific paper

10.1088/0264-9381/23/24/013

The specified constant 4-vector field reproducing the spherically symmetric stationary metric of cold dark matter halo in the region of flat rotation curves results in a constant angle of light deflection at small impact distances. The effective deflecting mass is factor $\pi/2$ greater than the dark matter mass. The perturbation of deflection picture due to the halo edge is evaluated.

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