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26 April 2024
 
  » arxiv » astro-ph/9910480

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Redshifts of the Gravitational Lenses MG1131+0456 and B1938+666
John L. Tonry ; Christopher S. Kochanek ;
Date 27 Oct 1999
Subject astro-ph
AffiliationInstitute for Astronomy), Christopher S. Kochanek (CFA
AbstractThe redshifts of the gravitational lens galaxies in MG1131+0456 and B1938+666 are 0.844 and 0.881 respectively. Both are early-type galaxies lying at the redshifts predicted by assuming that they are early-type galaxies with old stellar populations lying on the fundamental plane. We also find evidence for a foreground group of galaxies at z=0.343 near MG1131+0456. The source redshifts are predicted to be >1.8 in both systems, but they are so red that infrared spectra will be required to determine their redshifts.
Source arXiv, astro-ph/9910480
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