[vsnet-grb-info 6109] GRB080517: Liverpool Telescope Optical
Observations
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Sun May 18 08:09:16 JST 2008
TITLE: GCN CIRCULAR
NUMBER: 7743
SUBJECT: GRB080517: Liverpool Telescope Optical Observations
DATE: 08/05/17 23:09:10 GMT
FROM: James Smith at ARI,Liverpool John Moors U <rjs at astro.livjm.ac.uk>
R.J. Smith (Liverpool JMU), A. Gomboc (Univ. of Ljubljana, Slovenia),
A. Melandri, C. Guidorzi, M. Burgdorf, C.G. Mundell, I.A. Steele, D.
Carter, A. Monfardini, C.J. Mottram, S. Kobayashi, D. Bersier (Liverpool
JMU) report:
The 2-m Liverpool Telescope started observing the field of GRB 080517
(Parsons et al. GCN 7742) at 3 min after the trigger time.
No optical transient has been located in our images to the following
magnitude limits:
Filter t_mid (min from GRB) Exp (s) Lim
------------------------------------------------------------------
R 16.08 120 19.6
I 18.93 120 19.2
------------------------------------------------------------------
Magnitudes were calibrated vs the USNOB1 catalogue.
In particular, comparison with Digitized Sky Survey images shows no
obvious additional optical source in the vicinity of the known,
moderately bright object noted to be within the XRT error circle.
Observations stopped one hour after the burst time. No further
observations are currently planned.
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