The Redshift of the Lensed Object in the Einstein Ring B0218+357
Judith G. Cohen, Charles R. Lawrence, Roger D. Blandford
Abstract
We present a secure redshift of z=0.9440.002 for the lensed object in the Einstein ring gravitational lens B0218+357 based on five broad emission lines, in good agreement with our preliminary value announced several years ago based solely on the detection of a single emission line.
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