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Comparison of Total Flux and VLBI Properties of a Sample of 15 AGN at 22 GHz

Published online by Cambridge University Press:  12 April 2016

K. Wiik
Affiliation:
Metsähovi Radio Research Station, FIN-02540 Kylmälä, Finland
E. Valtaoja
Affiliation:
University of Turku, Tuorla Observatory, FIN-21500 Piikkiö, Finland

Abstract

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A sample of 15 bright AGN has been observed at 22 GHz with two epoch global VLBI observations. The sample consists of all sources in the complete 2 Jy catalogue of Valtaoja et al. (1992) previously unobserved at 22 GHz VLBI. We have begun to investigate how much structural information can be derived just from total flux density (TFD) monitoring and how to use total flux density observations to complement space VLBI observations. As an example we present Doppler boosting factors derived in four different methods.

Type
Research Article
Copyright
Copyright © Astronomical Society of the Pacific 1998

References

Valtaoja, E., et al. 1992. A&AS, 95, 7385.Google Scholar