99 citations · 122 across the 2 of their papers we have counts for
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CLASS B0827+525: `Dark lens' or binary radio-loud quasar?
L. V. E. Koopmans, A. G. de Bruyn, C. D. Fassnacht +12
We present radio, optical, near-infrared and spectroscopic observations of the source B0827+525. We consider this source as the best candidate from the Cosmic Lens All-Sky Survey (…
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…