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Discovery of a Probable Gravitational Lens

Meylan, G. and Djorgovski, S. (1989) Discovery of a Probable Gravitational Lens. In: Active Galactic Nuclei. Kluwer , Dordrecht, pp. 271-272. ISBN 9780792302568.

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We report the discovery of a new probable gravitational lens system, associated with the quasar UM 425 = 1120+019, at z = 1.465. The optical image of the system consists of 4 or more components. The two well-observed brightest components have very similar spectra. The difference of the two spectra (scaled appropriately) is consistent with a spectrum of a galaxy at z ≃ 0.6. There is a large number of faint galaxies in the field, suggestive of a lensing cluster at that redshift.

Item Type:Book Section
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Djorgovski, S.0000-0002-0603-3087
Additional Information:© 1989 International Astronomical Union. Provided by the NASA Astrophysics Data System.
Record Number:CaltechAUTHORS:20190807-073308925
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Official Citation:Meylan, G., & Djorgovski, S. (1989). Discovery of a Probable Gravitational Lens. Symposium - International Astronomical Union, 134, 271-272. doi:10.1017/S007418090014104X
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97687
Deposited By: Tony Diaz
Deposited On:07 Aug 2019 16:32
Last Modified:16 Nov 2021 17:33

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