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Superluminal Velocities of Compact Radio Sources: A Gravitational Lens Effect

Published online by Cambridge University Press:  14 August 2015

Jeno M. Barnothy
Jeno M. Barnothy*
Affiliation:
Evanston, Illinois

Extract

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An intervening galaxy acting as a gravitational lens produces usually from a compact radio source two or four enlarged “crescent” shaped virtual images, which have the same surface brightness as the object, but look brighter, due to the lens caused enlargement of the object area in the image. Velocities between elements of a source being vector quantities, will also be seen enlarged, occasionally to superluminal velocities (Fig.1). It is as simple as that. (Barnothy and Barnothy 1971; Barnothy 1976.)

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 97: Extragalactic Radio Sources , 1982 , pp. 463 - 464
Copyright
Copyright © Reidel 1982 

References

Barnothy, J.M. and Barnothy, M.F., 1971, B.A.A.S. 3, 472 Google Scholar
Barnothy, J.M. 1976, IAU Colloquium No.37; ed.Balkowski, C. and Westerlund, B. E. C.N.R.S., Paris, 361–363 Google Scholar
Barnothy, J.M. and Barnothy, M.F. 1973, B.A.A.S. 5, 448 Google Scholar
Barnothy, J.M. 1965, A.J. 70, 666 Google Scholar