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Paper: The 2cm VLBA Survey
Volume: 300, Radio Astronomy at the Fringe
Page: 27
Authors: Zensus, J.A.; Ros, E.; Kadler, M.; Kellermann, K.I.; Lister, M.L.; Homan, D.C.; Cohen, M.H.; Vermeulen, R.C.
Abstract: We report on the status of the 2 cm VLBA Survey, a program to study the kinematics of parsec-scale jets in active galactic nuclei (AGN). Over 200 sources have been observed at multiple epochs since 1994 with the Very Long Baseline Array (VLBA) at 15 GHz. The survey is restricted to flat-spectrum, bright sources (S15 GHz ≥ 1.5 Jy for δ > 0° and S15 GHz≥ 2 Jy for -20° < δ < 0°) with strong VLBI cores. More than 1000 images have been made so far and can be accessed from on-line archives at and

We present the distribution of apparent velocities measured for the 86 sources for which we have sufficient multi-epoch data, and we discuss the differences between the various classes of AGN (QSOs, BL Lacs, and galaxies). We have initiated a new long-term project, MOJAVE (Monitoring of Jets in AGN with VLBA Experiments), based on a statistically complete flux-limited sample which also includes studies of linear and circular polarization.
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