4 citations · 9 across the 14 of their papers we have counts for
18 papers
86 GHz polarimetry of OVV1633+382 after a major mm flare
B. W. Sohn, T. P. Krichbaum, I. Agudo +4
The 18 mag QSO 1633+382 (4C38.41, z=1.807) showed a very pronounced outburst in 2001/2002. With a peak amplitude of more than 9 Jy at 90GHz, this flare was brighter than any known…
Towards the Event Horizon - The Vicinity of AGN at Micro-Arcsecond Resolution
T. P. Krichbaum, D. A. Graham, W. Alef +18
We summarize the present status of VLBI experiments at 3 mm (86 GHz), 2 mm (129-150 GHz) and 1.3 mm (215-230 GHz). We present and discuss a new 3 mm VLBI map of M87 (Virgo A), whic…
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…
Quasi-Periodic Changes in the Parsec-Scale Jet of 3C345
J. Klare, J. A. Zensus, A. P. Lobanov +3
We have observed the QSO 3C345 with VSOP at 1.6GHz and 5GHz and with the VLBA at 22GHz and 43GHz, with 24 epochs in total, from 1997.40 to 1999.69. This study, combined with previo…
Multi-frequency & Multi-epoch VLBI study of Cygnus A
U. Bach, M. Kadler, T. P. Krichbaum +4
We present the first multi-frequency phase-referenced observations of Cygnus A done with the VLBA at 15 and 22 GHz. We find a pronounced two-sided jet structure, with a steep spect…
Approaching NGC3079 with VLBI
E. Middelberg, T. P. Krichbaum, A. L. Roy +2
The Seyfert 2 galaxy NGC3079 is one of the nearest radio-weak AGN. We have carried out multi-frequency, multi-epoch VLBI observations of this object and detected new components, pr…