The gravitational lens system 2016+112 revisited

Details The gravitational lens system 2016+112 revisited The gravitational lens system 2016+112 revisited

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...315..434n&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 315, April 15, 1987, p. 434-439. SERC-NSERC-supported research.

Astronomy and Astrophysics

Astrophysics

28

Astronomical Models, Galactic Clusters, Gravitational Lenses, Quasars, Emission Spectra, Line Spectra, Time Lag, Very Long Base Interferometry

Scientific paper

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.

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