144 citations · 328 across the 5 of their papers we have counts for
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astro-ph2005★ 92 cited
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…
astro-ph2002★ 144 cited
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.…
astro-ph2001
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.