Skip to main content
SpringerLink
Log in

A small mass, large image separation gravitational lens model

  • Published:
Astrophysics and Space Science Aims and scope Submit manuscript

Abstract

It is shown that gravitational lensing could produce images of comparable brightness which are separated by an angular distance larger than the angular size of the Einstein ring of the lens distribution. Hence, specific lens configurations allow given image separations to be derived with significantly less mass than a standard single lens model. A specific example is supplied, a simple case of two properly positioned lenses acting instead of one. Observational consequences are discussed that would result if such a model was used to explain the candidate gravitational lens systems Hazard 1146+111 B, C and PKS 1145−071. Such a lens distribution might, in many cases, be verifiable with VLBI techniques.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Barnothy, J. M.: 1968,Astron. J. 73, S164.

    Google Scholar 

  • Blandford, R. D. and Kochanek, C. S.: 1987, in J. Bahcall, T. Piran, and S. Weinberg (eds.),Fourth Jerusalem Winter School for Theoretical Astrophysics (in press).

  • Djorgovski, S., Perley, R., Meylan, G., and McCarthy, P.: 1987,Astrophys. J. (in press).

  • Chang, K. and Refsdal, S.: 1979,Nature 282, 561.

    Google Scholar 

  • Chang, K. and Refsdal, S.: 1984,Astron. Astrophys. 132, 168.

    Google Scholar 

  • Einstein, A.: 1936,Science 84, 506.

    Google Scholar 

  • Liebes, S., Jr.: 1964,Phys. Rev. 133B, 835.

    Google Scholar 

  • Misner, C. W., Thorne, K. S., and Wheeler, J. A.: 1973,Gravitation, W. H. Freeman, San Francisco.

    Google Scholar 

  • Nemiroff, R. J.: 1987, Ph.D. Thesis, University of Pennsylvania.

  • Paczynski, B.: 1986a,Astrophys. J. 301, 503.

    Google Scholar 

  • Paczynski, B.: 1986b,Nature 321, 419.

    Google Scholar 

  • Schneider, P. and Weiss, A.: 1986,Astron. Astrophys. 164, 237.

    Google Scholar 

  • Turner, E. L., Schneider, D. P., Burke, B. F., Hewitt, N., Lanston, G. I., Gunn, J. E., Lawrence, Ch. R., and Schmidt, M.: 1986,Nature 321, 142.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem, Israel

    Robert J. Nemiroff

Authors
  1. Robert J. Nemiroff
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Nemiroff, R.J. A small mass, large image separation gravitational lens model. Astrophys Space Sci 145, 53–59 (1988). https://doi.org/10.1007/BF00645694

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00645694

Keywords

Search

Navigation