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3C454.3: A New Kind of Superluminal Source?

Published online by Cambridge University Press:  04 August 2017

I.I.K. Pauliny-Toth
I.I.K. Pauliny-Toth*
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, F.R.G.

Abstract

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The quasar 3C454.3 has a “core-jet” structure, on scales ranging from 50 kpc to 100 pc. VLBI observations made during the last 5 years show that the structural variations within the core region are very different from those seen in the “classical” superluminal sources. After a period of very rapid expansion (apparent velocity va ≥ 30c), the brightest features in the core region showed little relative motion (va < 3c), although at least one weak, more distant component appears to have separated from the others with va ~ 19c. The most likely interpretation of the stationary features involves stationary shocks excited by a relativistic flow.

Type
V. Jets, Superluminal Motions and Blazars
Information
Symposium - International Astronomical Union , Volume 121: Observational Evidences of Activity of Galaxies , 1987 , pp. 295 - 300
Copyright
Copyright © Reidel 1987 

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