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A 10 Station VLBI Map of 3C147 at 1661 MHz

Published online by Cambridge University Press:  04 August 2017

R. S. Simon
Affiliation:
1E. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington D. C. 20375 4NRC/NRL Cooperative Research Associate
A. C. S. Readhead
Affiliation:
1E. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington D. C. 20375
P. N. Wilkinson
Affiliation:
1E. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington D. C. 20375

Abstract

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The quasar 3C147 was observed in October 1982 with a ten-station VLBI interferometer in an effort to search for possible superluminal motion (Simon et al. 1983) in the core. Previous observations, in 1976, had revealed that the core consisted of two compact components embedded in a larger halo. The new high quality map reveals that this double structure has disappeared and it is not possible to interpret the structural changes unambiguously in terms of an expansion or contraction.

Type
Research Article
Copyright
Copyright © Reidel 1984 

References

Readhead, A. C. S. and Wilkinson, P. N.: 1980, Ap. J. 235, pp. 11.Google Scholar
Schwab, F. R. and Cotton, W.D.: 1983, A.J. 88. pp. 487.CrossRefGoogle Scholar
Simon, R. S. et al.: 1983, Nature 302, pp. 487.Google Scholar