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Published January 1993 | Published
Journal Article Open

A K-band image of the gravitational lens system 2016 + 112

Abstract

A new K-band (2.0-2.4 µm) image of the gravitational lens system 2016 + 112 gives the clearest view yet obtained of the two lensing galaxies, which have K magnitudes of 17.2 and ~ 18. The fainter galaxy is extremely red, with r-K of ≈7.7 mag, and while no spectroscopic redshift is available for it, estimates based on colors suggest a redshift significantly greater than that of the brighter galaxy. This has important consequences for models of this system.

Additional Information

© 1993 American Astronomical Society. Received 25 June 1992; revised 27 August 1992. We would like to thank the Palomar staff and night assistant Juan Carrasco for their help with these observations, and Don Schneider both for sharing his spectrum of NGC 4889 and for useful comments as the referee. Infrared and radio astronomy at Caltech are supported by grants from the National Science Foundation.

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August 20, 2023
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