[vsnet-grb-info 9294] GRB 100518A: BOOTES-3 optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  10778
SUBJECT: GRB 100518A: BOOTES-3 optical observations
DATE:    10/05/19 08:44:42 GMT
FROM:    Antonio Deugarte at IAA-CSIC  <deugarte at iaa.es>

A. de Ugarte Postigo (INAF-OAB),  A.J. Castro-Tirado, J. Gorosabel,
M. Jelinek (IAA-CSIC), P. Kubanek (IPL UV, IAA-CSIC),
R. Cunniffe, S. Guziy (IAA-CSIC), P. Yock  (Auckland Univ.),
W.H. Allen (Vintage  Lane Obs.), I. Bond (Massey Univ.), G. Christie
(Stardome Obs.) report on behalf of a larger collaboration:

"We have observed the field of the INTEGRAL GRB 100518A
(Mereghetti et al., GCN 10772) using the 0.6m Yock-Allen robotic
telescope (BOOTES-3) located in Blenheim, New Zealand.
Preliminary analysis of a combined 40x60s unfiltered exposure
taken (mid-epoch) on 18th May 2010, 14:01 UT (2.47 hours after
the burst, when acceptable weather allowed to perform the
observations) does not show any source at the position of the
optical afterglow candidate (Cano et al., GCN 10776) down to a
3-sigma limiting magnitude of R ~ 20.7 using USNO-B1.0 as
photometric reference."