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Published 1993 | public
Book Section - Chapter

Symmetric structure in active galactic nuclei


We have identified a new class of active galactic nucleus, with symmetric nuclear radio structure (two opposed jets, and little evidence for relativistic effects. These objects are most readily explained as young (or rejuvenated) radio galaxies, less than 10⁴ years old. Study of these and similar objects is likely to lead to a better understanding of the formation of double-lobed radio galaxies and the creation and collimation of jets.

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© Springer-Verlag 1993. This work has been carried out in collaboration with my colleagues at Caltech (J.E. Conway, C.R. Lawrence, A.C.S. Readhead, S.C. Unwin, and W. Xu) and at Jodrell Bank (A. Polatidis and P.N. Wilkinson), and I am grateful for their permission to present these unpublished results at this meeting. A fuller account will be published in papers by Conway et al. (1992) and Polatidis et al. (1992). I am grateful to the Netherlands NWO for financial support and to the Kapteyn Laboratory, Groningen, for their hospitality.

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