402 citations · 1.1k across the 22 of their papers we have counts for
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Probing parsec scale jets in AGN with geodetic VLBI
A. B. Pushkarev, Y. Y. Kovalev
We report on an ongoing effort to image active galactic nuclei simultaneously observed at 2.3 and 8.6 GHz in the framework of a long-term VLBI project RDV (Research and Development…
MOJAVE: Monitoring of Jets in AGN with VLBA Experiments. V. Multi-epoch VLBA Images
M. L. Lister, H. D. Aller, M. F. Aller +9
We present images from a long term program (MOJAVE: Monitoring of Jets in AGN with VLBA Experiments) to survey the structure and evolution of parsec-scale jet phenomena associated…
15 GHz VLBI detection of the HST-1 feature in the M87 jet
C. S. Chang, E. Ros, Y. Y. Kovalev +1
A bright feature 100 pc away from the core in the powerful jet of M 87 shows mysterious properties. Earlier radio, optical and X-ray observations have shown that this feature, labe…
High-resolution studies of the twin jet in NGC 1052
E. Ros, M. Kadler, Y. Y. Kovalev +3
The radio loud galaxy NGC 1052 is being studied in an intensive multi-band campaign including X-ray brigthness monitoring and spectroscopic observations, single-dish radio brightne…
Physics of the central region in the quasar 0850+581
Y. Y. Kovalev, A. P. Lobanov, A. B. Pushkarev
The apparent position of the origin (core) of extragalactic radio jets shifts with the observing frequency, owing to synchrotron self-absorption and external absorption. One of the…
Large-amplitude intraday variability in QSO 1156+295 observed during a VLBI experiment
T. Savolainen, Y. Y. Kovalev
We present here the discovery of rapid, large amplitude intraday variability in the compact flat-spectrum radio quasar 1156+295. The detection of 40% flux density variations at 15…