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Paper: The Sub-Parsec-Scale Structure and Evolution of Centaurus A at 8.4 and 22.2 GHz
Volume: 144, Radio Emission from Galactic and Extragalactic Compact Sources, IAU Colloquium 164
Page: 87
Authors: Tingay, S. J.; Jauncey, D. L.; Reynolds, J. E.; Tzioumis, A. K.; Preston, R. A.; Jones, D. L.; Murphy, D. W.; Meier, D. L.; Lovell, J. E. J.; McCulloch, P. M.; Costa, M. E.; Nicolson, G.; Quick, J. F. H.
Abstract: We have been observing the sub-parsec-scale radio jet in the nucleus of Centaurus A, the closest active radio galaxy, at 8.4 GHz over the last 6 years with the SHEVE array and most recently with the VLBA at 8.4 and 22.2 GHz. In this paper we will review the results of these observations and give a brief summary of our interpretation, concentrating on the evolution of the sub-parsec-scale jet structure with time; subluminal component motions and rapid short timescale evolution. A full description of this work is soon to be published in a major journal article.
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