A complete infrared Einstein ring in the gravitational lens system B1938 + 666 |
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| Authors: | LJ King N Jackson RD Blandford MN Bremer IWA Browne AG de Bruyn C Fassnacht L Koopmans D Marlow PN Wilkinson |
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| Institution: | University of Manchester, NRAL Jodrell Bank, Macclesfield, Cheshire SK11 9DL;; California Institute of Technology, Pasadena, CA 91125, USA;; Institut d'Astrophysique de Paris, 98bis Blvd Arago, 75014 Paris, France;; Netherlands Foundation for Radio Astronomy, Postbus 2, 7990AA Dwingeloo, the Netherlands;; Kapteyn Astronomical Institute, Postbus 800, 9700AV Groningen, the Netherlands |
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| Abstract: | We report the discovery, using NICMOS on the Hubble Space Telescope , of an arcsec-diameter Einstein ring in the gravitational lens system B1938+666. The lensing galaxy is also detected, and is most likely an early-type galaxy. Modelling of the ring is presented and compared with the radio structure from MERLIN maps. We show that the Einstein ring is consistent with the gravitational lensing of an extended infrared component, centred between the two radio components. |
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| Keywords: | galaxies:active galaxies:individual B1938+666 gravitational lensing |
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