The statistical properties of gravitational lenses of galaxies and quasars

Details The statistical properties of gravitational lenses of galaxies and quasars The statistical properties of gravitational lenses of galaxies and quasars

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...214...43w&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 214, no. 1-2, April 1989, p. 43-46. Research supported by the National Natural

Statistics

Computation

9

Computational Astrophysics, Galactic Mass, Gravitational Lenses, Quasars, Angular Distribution, Galactic Clusters, Galactic Nuclei, Galactic Structure, Statistical Analysis

Scientific paper

Calculations have been made to determine statistically how many gravitationally-lensed quasars (GLQ) should be found among the sample of known quasars if galaxies with different masses are taken as the lensing objects. It is shown that the theoretical results fit the observations of GLQ perfectly. The large separation cases and the rare third image can easily be explained. Furthermore, GLQ can also be used as a tool to detect the structures of galaxies by comparing the theory with observations. The preliminary results with this method are presented. However, it is noted that the results should be considered carefully due to the incomplete samples of both quasars and GLQ.

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