Astrophysics and Space Science

, Volume 123, Issue 2, pp 381–387 | Cite as

Random gravitational lensing

  • Robert J. Nemiroff


A simple three-dimensional approach to calculate the probability of observing gravitational lensing, caused by a chance superposition of lens and source, is presented. The formalism is then used to estimate the lensing probabilities in a number of astrophysical situations. As indicated in earlier works, we find that the chance of random gravitational lensing being detected locally is small, and the chance at extra-galactic distances is large.


Astrophysical Situation Lensing Probability Chance Superposition 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Burke, B. F.: 1985,Comments Astrophys. 10, 75.Google Scholar
  2. Eddington, A. S.: 1919,Observatory 42, 119.Google Scholar
  3. Einstein, A.: 1908,Jahrb. Radioaktivität und Electronik 4, 11.Google Scholar
  4. Einstein, A.: 1936,Science 84, 506.Google Scholar
  5. Liebes, S., Jr.: 1964,Phys. Rev. 133B, 835.Google Scholar
  6. Refsdal, S.: 1964,Monthly Notices Roy. Astron. Soc. 128, 295.Google Scholar
  7. Soldner, J.: 1801,Berliner Astron. Jahrb. 1804, 161.Google Scholar
  8. Tikhov, G. A.: 1938,Bull. Obs. Central à Poulkovo 16, 1.Google Scholar
  9. Young, P.: 1981,Astrophys. J. 244, 756.Google Scholar
  10. Zwicky, F.: 1937,Phys. Rev. 51, 679.Google Scholar

Copyright information

© D. Reidel Publishing Company 1986

Authors and Affiliations

  • Robert J. Nemiroff
    • 1
  1. 1.Department of Astronomy and AstrophysicsUniversity of PennsylvaniaPhiladelphiaU.S.A.

Personalised recommendations