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Titlebook: Extragalactic Radio Sources; Proceedings of the 1 R. Ekers,C. Fanti,L. Padrielli Conference proceedings 1996 International Astronomical Uni

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The Sub-Parsec Scale Jets of AGN observations of Cygnus A at 22 & 43 GHz, which reveal evidence for subluminal motion in jet and counter-jet, and 86 GHz VLBI observations of two extreme γ—blazars, suggesting a tight correlation between their γ—ray activity and the generation of jets.
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A Dramatic (and Invisible!) Flare in NRAO 530 found a single component with . = 8 × 10. K. One year later, within one week of the peak of flare at 3 mm λ, observations with Haystack, Kitt Peak and Hat Creek observatories revealed a component comparable in size and flux density with . = 7 × 10. K. Table 1 details the source models for the two experiments.
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High Frequency Radio Observations of the Nucleus of Cen Arays (Kinzer et al. 1995). In the radio domain, the emission from the core dominates at high frequencies and a considerable effort was made to study variability at 22 and 43 GHz for more than ten years (Botti & Abraham 1995).
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Betriebs- und Wirtschaftsinformatikfar side jets are similar. This was interpreted as the result of free-free absorption in an ionized medium that lies in front of the counterjet but not in front of the near-side jet. An accretion disk or torus has an appropriate geometry to show this effect (for an analysis, see Levinson .., 1995).
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