GCN Circular 12661
Subject
GRB 111210A: SDSS prior imaging
Event
Date
2011-12-11T11:58:43Z (14 years ago)
From
Nial Tanvir at U.Leicester <nrt3@star.le.ac.uk>
N. R. Tanvir (U. Leicester) and D. Malesani (DARK) report:
We have analysed images of the field of GRB 111210A available in SDSS
DR8.�� The source detected in the Gemini imaging (Tanvir et al. GCN
12657) is also visible at low S/N in the gri and z filter images.�� Our
photometry gives magnitudes g=23.9, r=23.0, i=22.9 and z=23.0, with
errors around 0.3 mag in each case.�� Since these are consistent with
the Gemini magnitudes, this suggests that the source is a candidate
host galaxy, with little if any afterglow contributing to the Gemini images.
The detection in the g-band, and indeed its brightness, mean this
source is likely to be at redshift z<4.