Title of article :
Protoquasars: Physical States and Observable Properties
Author/Authors :
Umemura، Masayuki نويسنده , , Kawakatu، Nozomu نويسنده , , Mori، Masao نويسنده ,
Issue Information :
روزنامه با شماره پیاپی 1 سال 2003
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 :
active , Evolution , Formation , nuclei , starburst , galaxies , black hole physics
Journal title :
Astrophysical Journal
Journal title :
Astrophysical Journal
