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3C 273 and DA 193 Mapped with Crustal Dynamics VLBI Data

Published online by Cambridge University Press:  03 August 2017

Patrick Charlot ,
Jean-François Lestrade  and
Claude Boucher
Patrick Charlot
Affiliation:
Institut Géographique National, 2 Avenue Pasteur, F-94160, Saint-Mandé, France
Jean-François Lestrade
Affiliation:
Bureau des Longitudes, 77 Avenue Denfert-Rochereau, F-75014, Paris, France
Claude Boucher
Affiliation:
Institut Géographique National, 2 Avenue Pasteur, F-94160, Saint-Mandé, France

Abstract

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Hybrid maps of 3C 273 and DA 193 at 2.3 and 8.4 GHz have been produced with VLBI data acquired during a Crustal Dynamics campaign. By comparing to maps at previous epochs, superluminal components of 3C 273 are clearly detected. DA 193 is relatively compact. Structure corrections for the VLBI delay used in astrometry have been estimated from these maps. Some corrections are significant when compared with the precision of models used in astrometry and geodesy.

Type
Extragalactic
Information
Symposium - International Astronomical Union , Volume 129: The Impact of VLBI on Astrophysics and Geophysics , 1988 , pp. 33 - 34
Copyright
Copyright © Reidel 1988 

References

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