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The Gravitational Lens -- Galaxy Group Connection: I. Discovery of a Group Coincident with CLASS B0712+472
C. D. Fassnacht, L. M. Lubin
Previous observations of the environments of the lensing galaxies in gravitational lens systems suggest that many of the lensing galaxies are associated with small groups of galaxi…
Compact Symmetric Objects as Radio Flux Density Calibrators
C. D. Fassnacht, G. B. Taylor
We present results from the first intensive monitoring campaign of a sample of Compact Symmetric Objects (CSOs). We observed seven CSOs at 8.5 GHz over a period of eight months, wi…
The new two-image gravitational lens system CLASS B2319+051
D. Rusin, D. R. Marlow, M. Norbury +10
We report the discovery of a new two-image gravitational lens system from the Cosmic Lens All-Sky Survey, CLASS B2319+051. Radio imaging with the Very Large Array (VLA) and Multi-E…
The Inner Light Year of the Nearest Seyfert 1 Nucleus in NGC 4395
J. M. Wrobel, C. D. Fassnacht, L. C. Ho
The NRAO VLBA was used at 1.4 GHz to image the inner 550 mas (23 lt-years) of the nearest known Seyfert 1 nucleus, in the Sm galaxy NGC 4395. One continuum source was detected, wit…