1 citations · 1 across the 1 of their papers we have counts for
4 papers
Quasar Lensing
F. Courbin, P. Saha, P. L. Schechter
Massive structures, such as galaxies, act as strong gravitational lenses on background sources. When the background source is a quasar, several lensed images are seen, as magnified…
Cluster Reconstruction from Combined Strong and Weak Lensing
Prasenjit Saha, Liliya L. R. Williams, Hanadi AbdelSalam
The lensing information provided by multiple images, arclets, and statistical distortions can all be formulated as linear constraints on the arrival-time surface, and hence on the…
Pixellated Lenses and Estimates of H_0 from Time-delay Quasars
Liliya L. R. Williams, Prasenjit Saha
The largest source of uncertainty in the determination of H_0 from a multiply-imaged QSO system is the unknown mass distribution in the lensing galaxy. Parametric models severely r…
Cluster Mass Profile from Lensing
Hanadi M. AbdelSalam, Prasenjit Saha, Liliya L. R. Williams
We propose a new technique to reconstruct non-parametrically the projected mass distribution of galaxy clusters from their gravitational lens effect on background galaxies. The bea…