183 citations · 459 across the 7 of their papers we have counts for
7 papers
Systematic errors in strong gravitational lensing reconstructions, a numerical simulation perspective
W. Enzi, S. Vegetti, G. Despali +2
We present the analysis of a sample of twenty-four SLACS-like galaxy-galaxy strong gravitational lens systems with a background source and deflectors from the Illustris-1 simulatio…
SHARP -- VII. New constraints on the dark matter free-streaming properties and substructure abundance from gravitationally lensed quasars
Jen-Wei Hsueh, Wolfgang Enzi, Simona Vegetti +5
We present an analysis of seven strongly gravitationally lensed quasars and the corresponding constraints on the properties of dark matter. Our results are derived by modelling the…
Constraining the microlensing effect on time delays with new time-delay prediction model in measurements
Geoff C. -F. Chen, James H. H. Chan, Vivien Bonvin +14
Time-delay strong lensing provides a unique way to directly measure the Hubble constant (). The precision of the measurement depends on the uncertainties in the time…
Flux-ratio anomalies from discs and other baryonic structures in the Illustris simulation
Jen-Wei Hsueh, Giulia Despali, Simona Vegetti +3
The flux ratios in the multiple images of gravitationally lensed quasars can provide evidence for dark matter substructure in the halo of the lensing galaxy if the flux ratios diff…
Discovery of three strongly lensed quasars in the Sloan Digital Sky Survey
Peter R. Williams, Adriano Agnello, Tommaso Treu +12
We present the discovery of 3 quasar lenses in the Sloan Digital Sky Survey (SDSS), selected using two novel photometry-based selection techniques. The J0941+0518 system, with two…
SHARP - IV. An apparent flux ratio anomaly resolved by the edge-on disc in B0712+472
J. -W. Hsueh, L. Oldham, C. Spingola +6
Flux ratio anomalies in quasar lenses can be attributed to dark matter substructure surrounding the lensing galaxy and, thus, used to constrain the substructure mass fraction. Prev…
SHARP - II. Mass structure in strong lenses is not necessarily dark matter substructure: A flux ratio anomaly from an edge-on disc
J. - W. Hsueh, C. D. Fassnacht, S. Vegetti +5
Gravitational lens flux-ratio anomalies provide a powerful technique for measuring dark matter substructure in distant galaxies. However, before using these flux-ratio anomalies to…