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Gravitational lensing due to dark matter modelled by vector field

V. V. Kiselev·D. I. Yudin
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Abstract

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 $π/2$ greater than the dark matter mass. The perturbation of deflection picture due to the halo edge is evaluated.

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V. V. Kiselev, D. I. Yudin. 2006-10-24. Gravitational lensing due to dark matter modelled by vector field. https://doi.org/10.1088/0264-9381%2F23%2F24%2F013

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