Images for a Binary Gravitational Lens from a Single Real Algebraic Equation
Astrophysics
2009-11-07 v1
Abstract
It is shown that the lens equation for a binary gravitational lens being a set of two coupled real fifth-order algebraic equations (equivalent to a single complex equation of the same order) can be reduced to a single real fifth-order algebraic equation, which provides a much simpler way to study lensing by binary objects.
Cite
@article{arxiv.astro-ph/0206267,
title = {Images for a Binary Gravitational Lens from a Single Real Algebraic Equation},
author = {Hideki Asada},
journal= {arXiv preprint arXiv:astro-ph/0206267},
year = {2009}
}
Comments
4 pages; accepted for publication in A&A Letters