Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 5266

GRB060526: optical observations
2006-06-16T17:06:26Z (18 years ago)
Alexei Pozanenko at IKI, Moscow <>
D. Sharapov (MAO and NOT, La Palma),  T. Augusteijn (NOT, La Palma),
A.Pozanenko (IKI), V.Rumyantsev (CrAO)  on behalf of larger GRB follow up
collaboration report:

We observed the error box of GRB060526 (Campana et al. GCN5162) in Nordic
Optical Telescope with ALFOSC between (UT)  June 05 23:37 and June 06 00:41.
We do not detect the optical afterglow. Limiting magnitude of a combined
image of total exposure 10x300  is R~ 24.6.  Based on last 3 points of TT150
(Khamitov et al.  GCNs 5186, 5189, 5193) the limiting magnitude R=24.6 at
mid time (UT) June 06.0125 (T0+10.486d) is compatible with X-ray power law
decay index   2.8+/-0.1 (Moretti et al., GCN5194). While no sources are
detected within refined XRT error circle  (Campana et. GCN5168)  faint
galaxy (R=24.4 +/- 0.3) is detected at (J2000) RA = 15:31:18.2  Dec =
+00:17:12.7.  Taking into account redshift of the OT of GRB060526 z=3.21
(Berger and Gladders GCN5170) it is unlikely that the
detected galaxy is connected with GRB060526.

The combined image can be found at
Looking for U.S. government information and services? Visit