Gravitational lensing due to dark matter modelled by vector field

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

arXiv comment17 pages, LaTeX iopart class, 10 eps figures; explanaitions and discussion are extended and improved, reference added; version to appear in Classical and Quantum Gravity

References in corpus (11)

• Relativistic gravitation theory for the MOND paradigm
• Dilatonic ghost condensate as dark energy
• An alternative approach to the galactic dark matter problem
• Black Holes in the Ghost Condensate
• Combining rotation curves and gravitational lensing: How to measure the equation of state of dark matter in the galactic halo
• Modelling galaxy halos using dark matter with pressure
• Holes in the ghost condensate
• Moving sources in a ghost condensate
• Star tracks in the ghost condensate
• Ghost Cosmology: Exact Solutions, Transitions Between Standard Cosmologies and Ghost Dark Energy/Matter Evolution
• Vector field and rotational curves in dark galactic halos

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• Vector Field Models of Inflation and Dark Energy
• Accelerating Universe and Cosmological Perturbation in the Ghost Condensate
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