23 citations · 23 across the 2 of their papers we have counts for
6 papers
Active Galaxies at Milliarcsecond Resolution in the NOAO Deep Wide-Field Survey
J. M. Wrobel, T. A. Rector, G. B. Taylor +2
We are using the NRAO VLBA at 5.0 GHz to image about 200 FIRST sources stronger than 10 mJy at 1.4 GHz in the NDWFS.
B0850+054: a new gravitational lens system from CLASS
A. D. Biggs, D. Rusin, I. W. A. Browne +12
We report the discovery of a new gravitational lens system from the CLASS survey. Radio observations with the VLA, the WSRT and MERLIN show that the radio source B0850+054 is compr…
Radio Microlensing: Past, Present & Near Future
L. V. E. Koopmans, A. G. de Bruyn, C. D. Fassnacht +3
Strongly correlated non-intrinsic variability between 5 and 8.5 GHz has been observed in one of the lensed images of the gravitational lens B1600+434. These non-intrinsic (i.e. `ex…
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 (…
Measuring H_0 with CLASS B1608+656: The Second Season of VLA Monitoring
C. D. Fassnacht, E. Xanthopoulos, L. V. E. Koopmans +3
The four-component gravitational lens CLASS B1608+656 has been monitored with the VLA for two seasons in order to search for time delays between the components. These time delays c…
Lensing galaxies: light or dark?
N. Jackson, P. Helbig, I. W. A. Browne +4
In a recent paper, Hawkins (1997) argues on the basis of statistical studies of double-image gravitational lenses and lens candidates that a large population of dark lenses exists…