Gravitational lensing and Catastrophe theory
Astrophysics
2009-10-28 v1 General Relativity and Quantum Cosmology
Abstract
Singularities of caustics appeared in gravitational lensing effect are discussed analytically. Multipole expansion model of lensing object is mainly studied since it is tractable and universal. Our analyses are confirmed by numerical calculations and applied to multiple quasar system of PG1115+080. Consistencies with elliptical lens models are also discussed.
Cite
@article{arxiv.astro-ph/9507075,
title = {Gravitational lensing and Catastrophe theory},
author = {Y. Kakigi and T. Okamura and T. Fukuyama},
journal= {arXiv preprint arXiv:astro-ph/9507075},
year = {2009}
}
Comments
24 pages, latex, 18 figures