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“Missing image” in gravitational lens systems

Published online by Cambridge University Press:  19 July 2016

D. Narasimha ,
K. Subramanian  and
S.M. Chitre
D. Narasimha
Affiliation:
Department of Physics, University of Calgary, Calgary, Canada
K. Subramanian
Affiliation:
Astronomy Centre, University of Sussex, Brighton, U.K.
S.M. Chitre
Affiliation:
Tata Institute of Fundamental Research, Bombay, India

Abstract

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The gravitational lens models involving extended mass distribution generally predict an odd number of images with one of the images close to the centre of the principal lensing galaxy. In all the observed lens systems only an even number of images have been unambigously detected so far. It is demonstrated that the presence of a compact nucleus at the centre of lensing galaxies would dim the “odd” image significantly without affecting the rest of the image configuration.

Type
VI. Quasars as Probes of the Intervening Medium
Information
Symposium - International Astronomical Union , Volume 119: Quasars , 1986 , pp. 541 - 543
Copyright
Copyright © Reidel 1986 

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