76 citations · 115 across the 21 of their papers we have counts for
4 papers · 1 filter
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…
Kinematic Study of the Blazar 0716+714
U. Bach, T. P. Krichbaum, S. Britzen +3
We determined the kinematics at the jet of 0716+714 from a reanalysis of multi-frequency VLBI data (5, 8.4, 15, 22 GHz) obtained during the last 10 years combined with data from th…
High Precision Differential Astrometry
Eduardo Ros
While conventional imaging in VLBI provides information only about the relative position between different features of a given source, phase-referenced observations can provide pre…
Variability and Velocity of Superluminal Sources
M. H. Cohen, M. A. Russo, D. C. Homan +5
We investigate the relation between the Doppler factor determined from variations in total flux at 22 and 37 GHz, and the apparent transverse velocity determined from VLBA observat…