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Microlensing in the lensed quasar UM 425?

Published online by Cambridge University Press:  25 May 2016

F. Courbin ,
K. C. Sahu  and
G. Meylan
F. Courbin
Affiliation:
European Southern Observatory, Karl-Shwarzschild-Straße 2, D-85748 Garching bei München
K. C. Sahu
Affiliation:
European Southern Observatory, Karl-Shwarzschild-Straße 2, D-85748 Garching bei München
G. Meylan
Affiliation:
European Southern Observatory, Karl-Shwarzschild-Straße 2, D-85748 Garching bei München

Abstract

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During the ESO key-program on gravitational lenses, the light curves of two images (A and B) of the lensed quasar UM 425 were obtained (from 1987 to 1995). This poster presents a possible interpretation of the light curves in terms of a micro-lensing event in the faint B component of the system, without ruling out a possible intrinsic variation of the source.

Type
Chapter 8: Quasar Structure & Microlensing
Information
Symposium - International Astronomical Union , Volume 173: Astrophysical Applications of Gravitational Lensing , 1996 , pp. 253 - 254
Copyright
Copyright © Kluwer 1996 

References

Courbin, F., Magain, P., Remy, M., Smette, A., Claeskens, J.F., Hainaut, O., Hutsemékers, D., Meylan, G., & Van Drom, E., 1995, A&A, in press.Google Scholar
Meylan, G., Djorgovski, S.G., 1989, ApJL, 338, L1.CrossRefGoogle Scholar
Michalitsianos, A.G., & Oliversen, R.J., 1995, these proceedings. Google Scholar