23 citations · 23 across the 1 of their papers we have counts for
15 papers · 1 filter
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…
Parsec-scale structure in galactic disk and halo, from diffuse radio polarization
M. Haverkorn, P. Katgert, A. G. de Bruyn
We present multi-frequency polarization observations of the diffuse radio synchrotron background modulated by Faraday rotation. No total intensity is observed, indicating that tota…
The microarcsecond quasar J1819+3845
J. Dennett-Thorpe, A. G. de Bruyn
We present new WSRT observations of the micro-arcsecond quasar J1819+3845. All short term variations are attributed to interstellar scintillation of a source which is at most 30 mi…
WSRT Observations of the Hubble Deep Field Region
M. A. Garrett, A. G. de Bruyn, M. Giroletti +2
We present deep WSRT 1.4 GHz observations of the Hubble Deep Field region. At the 5 sigma level, the WSRT clearly detects 85 regions of radio emission in a 10' x 10' field centred…
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 (…
A radio-microlensing caustic crossing in B1600+434?
L. V. E. Koopmans, A. G. de Bruyn, J. Wambsganss +1
First, we review the current status of the detection of strong `external' variability in the CLASS gravitational B1600+434, focusing on the 1998 VLA 8.5-GHz and 1998/9 WSRT multi-f…