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

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Schriftenreihe Markt und Marketingal Dynamics Program. Such data provide valuable maps which are useful to track superluminal components on short time scales (Charlot 1992). We have mapped and model-fitted OJ287 at ten epochs separated by intervals of a few months between 1985.4 and 1988.1 (Fig. 1a). The structure of OJ287 over this

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Carbon-Monoxide

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Extragalactic Radio Sources978-94-009-0295-4Series ISSN 1743-9213 Series E-ISSN 2352-2186

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Guglielmo Marconi and Radioastronomyitself a recognition of the widespread feeling of a historical link between the great discovery of Guglielmo Marconi and the birth of radioastronomy. Obviously, it is not a direct link. We all well know that the birth of radioastronomy must be traced back to the year 1932 when Karl Jansky recognized

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The Sub-Parsec Scale Jets of AGNscale — regions of active galactic nuclei (AGN), which are self-absorbed at lower frequencies. Here we briefly present preliminary results from recent 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 extr