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VLBI Astrometry

Published online by Cambridge University Press:  19 July 2016

J. E. Reynolds
J. E. Reynolds*
Affiliation:
Australia Telescope National Facility, CSIRO

Abstract

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VLBI is at present the most accurate technique for measuring radiosource positions and the only method capable of high precision for a reasonable number of sources. The applications of VLBI astrometry in stellar, Galactic and extra-Galactic regimes are reviewed. In particular, substantial progress has been made in the last few years towards a global reference frame of extragalactic radiosource positions. The status of this frame, and of the link to the optical reference frames is also described.

Keywords

AstrometryVLBIPhase-Referencing
Type
Astrometry
Information
Symposium - International Astronomical Union , Volume 158: Very High Angular Resolution Imaging , 1994 , pp. 437 - 444
Copyright
Copyright © Kluwer 1994 

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