[vsnet-grb-info 3354] GRB 060526: RTT150 optical observations

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  5189
SUBJECT: GRB 060526: RTT150 optical observations
DATE:    06/05/31 06:17:36 GMT
FROM:    Rodion Burenin at IKI, Moscow  <rodion at hea.iki.rssi.ru>

I. Khamitov (TUG), I. Bikmaev, N. Sakhibullin (KSU/AST),
Z. Aslan (TUG), U. Kiziloglu (METU), E. Gogus (Sabanci Uni.),
R. Burenin, M. Pavlinsky, R. Sunyaev (IKI)

report:

We continue our observations of the optical counterpart of GRB060526
(Campana et al. GCN 5162; French & Jelinek GCN 5165; Rykoff et al. GCN 5166)
with Russian-Turkish 1.5-m telescope (RTT150, Bakirlitepe,TUBITAK National
Observatory, Turkey). A series of frames were taken on May 30. The afterglow
is detected on combined images in both V and R bands.

We estimate the following Rc magnitudes for the OT:

    t-t0  m_R     err
  104.05  23.14   0.09

Our Rc lightcurve can be found at:

http://hea.iki.rssi.ru/grb/060526/lc_0530.jpg

In combination with MDM 1.3-m observations (Halpern et al., GCN 5188) these
data suggest that the OT light curve can not be fitted by a combination of
power laws and contain several optical flares.

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