51 citations · 144 across the 7 of their papers we have counts for
7 papers
Asymmetric Light Bending in the Equatorial Kerr Metric
Arthur B. Congdon, Savitri V. Iyer, Charles R. Keeton
The observation of the bending of light by mass, now known as gravitational lensing, was key in establishing general relativity as one of the pillars of modern physics. In the past…
Identifying Anomalies in Gravitational Lens Time Delays
Arthur B. Congdon, Charles R. Keeton, C. Erik Nordgren
We examine the ability of gravitational lens time delays to reveal complex structure in lens potentials. In Congdon, Keeton & Nordgren (2008), we predicted how the time delay betwe…
Strong Gravitational Lensing as a Probe of Gravity, Dark-Matter and Super-Massive Black Holes
L. V. E. Koopmans, M. Auger, M. Barnabe +26
Whereas considerable effort has been afforded in understanding the properties of galaxies, a full physical picture, connecting their baryonic and dark-matter content, super-massive…
Strong gravitational lensing probes of the particle nature of dark matter
Leonidas A. Moustakas, Kevork Abazajian, Andrew Benson +44
There is a vast menagerie of plausible candidates for the constituents of dark matter, both within and beyond extensions of the Standard Model of particle physics. Each of these ca…
Analytic Relations for Magnifications and Time Delays in Gravitational Lenses with Fold and Cusp Configurations
Arthur B. Congdon, Charles R. Keeton, 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 thre…
Microlensing of an extended source by a power-law mass distribution
Arthur B. Congdon, Charles R. Keeton, S. J. Osmer
Microlensing promises to be a powerful tool for studying distant galaxies and quasars. As the data and models improve, there are systematic effects that need to be explored. Quasar…