192 citations · 1.5k across the 45 of their papers we have counts for
Showing 2000 · astro-phShow all
2 papers · 2 filters
astro-ph2000
New VLBI Constraints for 0957+561 Lens Models
Deborah Haarsma, Joseph Leh'ar, Rennan Barkana
Time-delay measurements of 0957+561 based on radio monitoring now agree with optical monitoring. Recent models incorporate many recent observations, but the systematic uncertaintie…
astro-ph2000
Gravitational Lensing of High Redshift Sources
Rennan Barkana, David Hogg, Abraham Loeb +1
The combination of deep exposures and high resolution offered by telescopes in space allows the detection of lensing over a wide range of source redshifts and lens masses. As an ex…