Gravitational lensing by exotic objects
General Relativity and Quantum Cosmology
2017-11-07 v1 High Energy Astrophysical Phenomena
High Energy Physics - Theory
Abstract
This paper reviews a phenomenological approach to the gravitational lensing by exotic objects such as the Ellis wormhole lens, where exotic lens objects may follow a non-standard form of the equation of state or may obey a modified gravity theory. A gravitational lens model is proposed in the inverse powers of the distance, such that the Schwarzschild lens and exotic lenses can be described in a unified manner as a one parameter family. As observational implications, the magnification, shear, photo-centroid motion and time delay in this lens model are discussed.
Cite
@article{arxiv.1711.01730,
title = {Gravitational lensing by exotic objects},
author = {Hideki Asada},
journal= {arXiv preprint arXiv:1711.01730},
year = {2017}
}
Comments
21 pages, 3 figures, manuscript for a review for MPLA