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Some Remarks on Gravitational Micro-Lensing

Published online by Cambridge University Press:  07 August 2017

Sjur Refsdal  and
Rainer Kayser
Sjur Refsdal
Affiliation:
Hamburger Sternwarte, Gojenbergsweg 112, D-2050 Hamburg 80, F.R. Germany
Rainer Kayser
Affiliation:
Hamburger Sternwarte, Gojenbergsweg 112, D-2050 Hamburg 80, F.R. Germany

Abstract

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Gravitational micro-lensing can be used to obtain information 1) on the inner structure of active galactic nuclei and 2) on the distribution of compact masses in the range 10−4 … 102 solar masses. A regular monitoring of the most promising candidates for micro-lensing should be carried out. The strongest candidate is the macro-lensed quasar 2237+030, for which we expect a change in the luminosity ratio between the images of about 5 per cent per year.

Type
Part 4: Black Holes, Accretion Disks and Gravitational Lenses
Information
Symposium - International Astronomical Union , Volume 134: Active Galactic Nuclei , 1989 , pp. 267 - 268
Copyright
Copyright © Kluwer 1989 

References

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