[vsnet-grb-info 4155] GRB 061222b: Refined redshift

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  5962
SUBJECT: GRB 061222b: Refined redshift
DATE:    06/12/22 05:33:56 GMT
FROM:    Edo Berger at Carnegie Obs  <eberger at ociw.edu>

E. Berger (Carnegie) reports:

"Using several metal absorption features (e.g., SiII, CII, SiIV, etc.) in 
our first 1800 sec spectroscopic observation we determine a refined 
redshift for GRB 061222b of z=3.355."