44 citations · 49 across the 10 of their papers we have counts for
Showing 2004 · astro-phShow all
3 papers · 2 filters
astro-ph2004
VLBI detections of a source weaker than 100 mJy at 86 GHz
E. Middelberg, A. L. Roy, R. C. Walker +1
We use a new phase-calibration strategy to calibrate the phase of 86 GHz VLBI observations of the FR I radio galaxy NGC 4261. Instead of switching between a calibrator source and t…
astro-ph2004★ 1 cited
Spectral Properties of the Core and the VLBI-Jets of Cygnus A
U. Bach, T. P. Krichbaum, E. Middelberg +4
We present a detailed VLBI study of the spectral properties of the inner core region of the radio galaxy Cygnus A at 5 GHz, 15 GHz, 22 GHz, 43 GHz and 86 GHz. Our observations incl…
astro-ph2004
Gas Around Active Galactic Nuclei and New Phase Calibration Strategies for High-Frequency VLBI
E. Middelberg
We have a project to measure magnetic fields in the obscuring tori of AGNs. We observed five free-free absorbed jets in radio galaxies with polarimetric VLBI at 15 GHz to determine…