GCN Circular 11537
Subject
GRB 110106B: Liverpool Telescope observations
Date
2011-01-07T11:12:06Z (13 years ago)
From
Cristiano Guidorzi at Ferrara U,Italy <guidorzi@fe.infn.it>
C. Guidorzi (U. Ferrara), A. Melandri (INAF-OAB),
I.A. Steele, C.G. Mundell, S. Kobayashi (Liverpool JMU),
A. Gomboc (U. Ljubljana) on behalf of a large collaboration report:
The 2-m Liverpool Telescope automatically began observing
GRB 110106B (Sbarufatti et al. GCN Circ. 11525) on January 06,
21:35:46 UT, 9.5 minutes from the GRB trigger time with the
SDSS filters riz.
Within the enhanced XRT error circle (Beardmore et al. GCN Circ. 11532)
we do not find any source down to the following limiting magnitudes.
Mid time from Tot Exposure Filter Limiting Magnitude
trigger (s) (s)
------------------------------------------------------------
2594 720 z > 20.4
2300 720 i > 21.4
2620 1260 r > 22.5
------------------------------------------------------------
Calibration is against some nearby SDSS stars.
The non-detection of the extended object mentioned by Levan et
al. (GCN Circ. 11534) with i~22.5 is consistent with our limit.