Author/Authors :
GREEN، DONALD P. نويسنده , , Bautz، M. W. نويسنده , , Garmire، G. P. نويسنده , , Markevitch، M. نويسنده , , Butt، B. Biller, Y. نويسنده , , Edgar، R. نويسنده , , Gaetz، T. نويسنده , , Grant، C. E. نويسنده ,
Abstract :
We present a secure redshift of z = 0.944 ± 0.002 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.
Keywords :
ISM: general , X-rays: diffuse background , X-rays: ISM , methods: data analysis , intergalactic medium
