GCN Circular 13532
Subject
GRB 120729A Gemini-N redshift
Event
Date
2012-07-29T13:16:08Z (14 years ago)
From
Nial Tanvir at U.Leicester <nrt3@star.le.ac.uk>
N. R. Tanvir (U. Leicester) and J. Ball (Gemini) report on behalf of a
larger collaboration:
We observed the afterglow of GRB 120729A (Ukwatta et al. GCN 13530)
using the GMOS-N spectrograph on Gemini-North.
Observations began at 2012-7-29 12:11 UT, about 75 mins post-burst.
The spectrum reveals strong absorption lines of MgI, MgII, FeII, MnII.
A provisional reduction gives a redshift of z=0.80, which we believe is most
likely the redshift of this burst.