17 citations · 41 across the 5 of their papers we have counts for
5 papers
The Gravitational Lens B1608+656: I. V, I, and H-band HST Imaging
G. Surpi, R. D. Blandford
We present a multi-wavelength analysis of high-resolution observations of the quadruple lens B1608+656 from the HST archive, acquired with WFPC2 through filters F606W (V-band) and…
Point source models for the gravitational lens B1608+656: Indeterminacy in the prediction of the Hubble constant
Gabriela Surpi, Roger Blandford
We apply elliptical isothermal mass models to reproduce the point source properties, i.e. image positions, flux density ratios and time delay ratios, of the quadruple lens B1608+65…
Modeling Galaxy Lenses
Roger Blandford, Gabriela Surpi, Tomislav Kundic
In order to use a gravitational lens to measure the Hubble constant accurately, it is necessary to derive a reliable model of the lens surface potential. If the analysis is restric…
Weak-Lensing by Large-Scale Structure and the Polarization Properties of Distant Radio-Sources
Gabriela C. Surpi, Diego D. Harari
We estimate the effects of weak lensing by large-scale density inhomogeneities and long-wavelength gravitational waves upon the polarization properties of electromagnetic radiation…
Large-scale Structure and the Determination of from Gravitational Lens Time Delays
Gabriela C. Surpi, Diego D. Harari, Joshua A. Frieman
We analyse the effects of large-scale inhomogeneities upon the observables of a gravitational lens system, focusing on the issue of whether large-scale structure imperils the progr…