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Galaxy density profiles and shapes -- II. selection biases in strong lensing surveys
Rachel Mandelbaum, Glenn van de Ven, Charles R. Keeton
[Abridged] Many current and future astronomical surveys will rely on samples of strong gravitational lens systems to draw conclusions about galaxy mass distributions. We use a new…
Galaxy density profiles and shapes -- I. simulation pipeline for lensing by realistic galaxy models
Glenn van de Ven, Rachel Mandelbaum, Charles R. Keeton
Studies of strong gravitational lensing in current and upcoming wide and deep photometric surveys, and of stellar kinematics from (integral-field) spectroscopy at increasing redshi…
Is the Optically Unidentified Radio Source, FIRST J121839.7+295325, a Dark Lens?
R. E. Ryan, S. H. Cohen, R. A. Windhorst +2
We present evidence that the optically unidentified radio source, FIRST J121839.7+295325, may be strongly lensing a background galaxy. We estimate the redshift of the assumed gravi…
The Observatory for Multi-Epoch Gravitational Lens Astrophysics (OMEGA)
Leonidas A Moustakas, Adam J Bolton, Jeffrey T Booth +15
(abridged) The Observatory for Multi-Epoch Gravitational Lens Astrophysics (OMEGA) is a mission concept for a 1.5-m near-UV through near-IR space observatory that will be dedicated…
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…
A New Channel for Detecting Dark Matter Substructure in Galaxies: Gravitational Lens Time Delays
Charles R. Keeton, Leonidas A. Moustakas
We show that dark matter substructure in galaxy-scale halos perturbs the time delays between images in strong gravitational lens systems. The variance of the effect depends on the…