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Gravitational Lenses pp 100–105Cite as

Resolution of galaxy and third image of gravitational lens 2016+112

  • IV. Observations of Gravitational Lenses
  • Conference paper
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Part of the book series: Lecture Notes in Physics ((LNP,volume 330))

Abstract

The components of 2016+112 are variable. It is probable that all three compact objects are variable, but the absolute flux density scale is difficult to determine. The strong variation of C is contrary to expectations, because VLBI observations show C is extended and must vary more slowly than a compact object. If the C flux density decrease is due to variation of a third image, this image must have very large percentage flux density changes. Any third image, C′, must be very near C, < 0.19 arcseconds away for images with A/C′ flux density ratios < 2 magnitudes. Component C has been resolved, but measuring the contribution of the quasar image to the radio flux density requires further observations. The Narasimha et al. model that is not excluded by these observations suggests that a massive galaxy is located at the radio component C.

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References

  • Heflin, M. B., Gorenstein, M. V., Falco, E. E., Shapiro, I. I., Burke, B. F., Hewitt, J. N., Rogers, A. E. E., and Lawrence, C. R. 1988, in The Impact of VLBI on Astrophysics and Geophysics, Proceedings of IAU Symposium No. 129,ed. M. J. Reid and J. M. Moran (Dordrecht: Reidel), p. 209.

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Author notes

  1. G. Langston

    Present address: Max Planck Institut, Auf dem Hügel 69, D-5300, Bonn-1, Germany

  2. C. Lawrence

    Present address: California Institute of Technology, Pasadena, California, USA

  3. V. Dhawan

    Present address: Harvard Smithsonian Obs., 60 Garden St, 02139, Cambridg, MA, USA

Authors and Affiliations

  1. Massachusetts Institute of Technology, 02139, Cambridge, MA, USA

    G. Langston, C. Carilli, S. Conner, M. Heflin, J. Lehár, C. Lawrence, V. Dhawan & B. Burke

Authors
  1. G. Langston
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  2. C. Carilli
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  3. S. Conner
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  4. M. Heflin
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  5. J. Lehár
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  6. C. Lawrence
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  7. V. Dhawan
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  8. B. Burke
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Editor information

J. M. Moran J. N. Hewitt K. Y. Lo

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© 1989 Springer-Verlag

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Langston, G. et al. (1989). Resolution of galaxy and third image of gravitational lens 2016+112. In: Moran, J.M., Hewitt, J.N., Lo, K.Y. (eds) Gravitational Lenses. Lecture Notes in Physics, vol 330. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-51061-3_44

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  • DOI: https://doi.org/10.1007/3-540-51061-3_44

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-51061-1

  • Online ISBN: 978-3-540-46142-5

  • eBook Packages: Springer Book Archive

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