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Analytic Relations for Magnifications and Time Delays in Gravitational Lenses with Fold and Cusp Configurations

By Arthur B. Congdon, Charles R. Keeton and C. Erik Nordgren


Gravitational lensing provides a unique and powerful probe of the mass distributions of distant galaxies. Four-image lens systems with fold and cusp configurations have two or three bright images near a critical point. Within the framework of singularit

Year: 2008
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