Vector field and rotational curves in dark galactic halos
General Relativity and Quantum Cosmology
2010-11-19 v3 Astrophysics
High Energy Physics - Phenomenology
Abstract
We study equations of a non-gauge vector field in a spherically symmetric static metric. The constant vector field with a scale arrangement of components: the time component about the Planck mass m_{Pl} and the radial component about M suppressed with respect to the Planck mass, serves as a source of metric reproducing flat rotation curves in dark halos of spiral galaxies, so that the velocity of rotation v_0 is determined by the hierarchy of scales: \sqrt{2} v_0^2= M/m_{Pl}, and M\sim 10^{12} GeV. A natural estimate of Milgrom's acceleration about the Hubble rate is obtained.
Cite
@article{arxiv.gr-qc/0404042,
title = {Vector field and rotational curves in dark galactic halos},
author = {V. V. Kiselev},
journal= {arXiv preprint arXiv:gr-qc/0404042},
year = {2010}
}
Comments
17 pages, iopart style, misprint removed