144 citations · 328 across the 5 of their papers we have counts for
5 papers
Lensing by Kerr Black Holes. II: Analytical Study of Quasi-Equatorial Lensing Observables
Amir B. Aazami, Charles R. Keeton, A. O. Petters
In this second paper, we develop an analytical theory of quasi-equatorial lensing by Kerr black holes. In this setting we solve perturbatively our general lens equation with displa…
Lensing by Kerr Black Holes. I: General Lens Equation and Magnification Formula
Amir B. Aazami, Charles R. Keeton, A. O. Petters
We develop a unified, analytic framework for gravitational lensing by Kerr black holes. In this first paper we present a new, general lens equation and magnification formula govern…
Identifying Lenses with Small-Scale Structure. II. Fold Lenses
Charles R. Keeton, B. Scott Gaudi, A. O. Petters
When the source in a 4-image gravitational lens lies close to a "fold" caustic, two of the lensed images lie close together. If the lens potential is smooth on the scale of the sep…
Identifying Lenses with Small-Scale Structure. I. Cusp Lenses
Charles R. Keeton, B. Scott Gaudi, A. O. Petters
The inability of standard models to explain the flux ratios in many 4-image gravitational lenses has been cited as evidence for significant small-scale structure in lens galaxies.…
Center of Light Curves for Whitney Fold and Cusp
B. Scott Gaudi, A. O. Petters
The generic, qualitative, local behavior of center-of-light curves near folds and cusps are studied. The results apply to any finite number of lens planes.