Lensing in the McVittie metric
Cosmology and Nongalactic Astrophysics
2016-05-27 v2 General Relativity and Quantum Cosmology
Abstract
We investigate the effect of the cosmological expansion on the bending of light due to an isolated point-like mass. We adopt McVittie metric as the model for the geometry of the lens. Assuming a constant Hubble factor we find an analytic expression involving the bending angle, which turns out to be unaffected by the cosmological expansion at the leading order.
Cite
@article{arxiv.1508.04763,
title = {Lensing in the McVittie metric},
author = {Oliver F. Piattella},
journal= {arXiv preprint arXiv:1508.04763},
year = {2016}
}
Comments
4 pages, 3 figures. Mistakes corrected. Conclusions completely changed