GCN Circular 7661
Subject
GRB080430: RTT150 Optical Observations
Date
2008-05-02T00:18:18Z (16 years ago)
From
Irek Khamitov at TUG <irekk@tug.tug.tubitak.gov.tr>
I. Khamitov (TUG), I. Bikmaev, R. Gumerov,
A. Nemtinov, N. Sakhibullin (KSU/AST),
R. Burenin, M. Pavlinsky, R. Sunyaev (IKI),
Z. Eker (TUG), U. Kiziloglu (METU), E. Gogus (Sabanci Uni.)
report:
The optical counterpart (GCN7646) of GRB 080430 (GCN 7647) was observed
with Russian-Turkish 1.5-m telescope (RTT150, Bakirlitepe, TUBITAK
National Observatory, Turkey), starting at May 01, 21:58 UT, i.e.
~26.08 hours after the burst, using Andor CCD.
A series of frames 3*300s in R and 3*600s in B bands were made.
The afterglow is clearly detected in all images. Using USNO-B1 star
(416-022819, RA=11:01:16.86, DEC=+51:40:38.5, B2MAG=17.79, R2MAG=16.61)
we estimated the following magnitudes for the OT on combined images:
t-t0 (h) band mag err
26.25 R 21.3 0.1
27.98 B 22.3 0.1
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