GCN Circular 5306
Subject
GRB060526: optical observations
Event
Date
2006-07-13T14:05:29Z (19 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
V.Rumyantsev (CrAO), A.Pozanenko (IKI), M.Ibrahimov, I.Asfandyarov (MAO) on
behalf of larger GRB follow up collaboration report:
We observed the afterglow of GRB060526 (Campana et al. GCN5162) in Maidanak
Astronomical Observatory (MAO) with 1.5 m telescope in R and B-passbands on
May 26-31, and June 1-2. Additinnaly we recalibrated observation with CrAO
Shajn 2.6m telescope (Rumyantsev et al. GCN5181). A photometry is based on
the star USNO B1.0 RA=15 31 18.60 DEC=+00 17 35.00 R2=16.35 B2=16.42
already used in GCNs (Khamitov GCN5173, Morgan GCN5175, Kann GCN5172,
Baliyan GCN5185). R-band photometry of the afterglow and upper limits are
following:
Mid_time (UT), Telescope, R_mag
26.7778 MAO1.5 17.98 +/- 0.01
26.7829 MAO1.5 18.06 +/- 0.01
26.7883 MAO1.5 18.11 +/- 0.01
27.7799 CrAO2.6 20.38 +/- 0.07
27.8143 CrAO2.6 20.47 +/- 0.06
27.8233 MAO1.5 20.43 +/- 0.04
28.8014 MAO1.5 21.31 +/- 0.13
29.8053 MAO1.5 22.06 +/- 0.11
30.8049 MAO1.5 22.84 +/- 0.24
31.7938 MAO1.5 23.52 +/- 0.32
01.8318 MAO1.5 >23.6
02.8648 MAO1.5 >23.8
The afterglow is clearly detected in B-filter up to May 29; B-photometry
is underway.
The message may be cited.