The gravitational lens system 2016+112 revisited

Narasimha, D. ; Subramanian, K. ; Chitre, S. M. (1987) The gravitational lens system 2016+112 revisited Astrophysical Journal, 315 . pp. 434-439. ISSN 0004-637X

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In the light of recently reported observations of the triple radio source 2016+112 by Schneider et al. (1985, 1986), gravitational lens models of this system are constructed based on two lens galaxies and a cluster. Various observations of this multiply imaged quasar system, including some of the features accompanying object C, are reasonably well reproduced. The admissible lens models involve a five-image configuration with two merging images rather than just three images. In this respect this lens system is analogous to the triple quasar 1115+080. In the models the emission line regions accompanying images A and B arise from two distinct sources. A measurement of time delays, a relation between conceivable VLBI structures associated with images, and further radio observations of the object C as possible tests of the lens models are suggested.

Item Type:Article
Source:Copyright of this article belongs to American Astronomical Society.
Keywords:Astronomical Models; Galactic Clusters; Gravitational Lenses; Quasars; Emission Spectra; Line Spectra; Time Lag; very Long Base Interferometry
ID Code:5825
Deposited On:19 Oct 2010 10:44
Last Modified:16 May 2016 16:16

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