Beyond lensing by the cosmological constant
General Relativity and Quantum Cosmology
2017-01-25 v2
Abstract
The long-standing problem of whether the cosmological constant affects directly the deflection of light caused by a gravitational lens is reconsidered. We use a new approach based on the Hawking quasilocal mass of a sphere grazed by light rays and on its splitting into local and cosmological parts. Previous literature restricted to the cosmological constant is extended to any form of dark energy accelerating the universe in which the gravitational lens is embedded.
Cite
@article{arxiv.1608.03164,
title = {Beyond lensing by the cosmological constant},
author = {Valerio Faraoni and Marianne Lapierre-Leonard},
journal= {arXiv preprint arXiv:1608.03164},
year = {2017}
}
Comments
4 pages. Added some discussion and a few references, matches version accepted in Phys. Rev. D