[vsnet-grb-info 20630] GRB 180514A: GOTO Optical Observations
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Tue May 15 06:46:49 JST 2018
TITLE: GCN CIRCULAR
NUMBER: 22728
SUBJECT: GRB 180514A: GOTO Optical Observations
DATE: 18/05/14 21:46:20 GMT
FROM: Ben Gompertz at U of Warwick <b.gompertz at warwick.ac.uk>
B.Gompertz (U. Warwick), K.Ulaczyk (U. Warwick), M.Dyer (U. Sheffield),
E.Rol (Monash U.), K. Ackley (Monash U.), D.Steeghs (U. Warwick),
D.Galloway (Monash U.), G.Ramsay (Armagh O.), V.Dhillon (U. Sheffield),
P.O'Brien (U. Leicester), S.Poshyachinda (NARIT), D.Pollacco (U.
Warwick), E.Thrane (Monash U.)
report on behalf of the GOTO collaboration:
The Gravitational-wave Optical Transient Observer observed the field of
GRB 180514A (trigger=832368, LaPorte et al. GCN Circ. 22723) from Roque
de los Muchachos Observatory beginning at 2018-05-14T21:09:12 UT, 7.73
hours since burst, in several wide-band filters.
In a combined L-band image (400-700nm passband), with a total exposure
time of 360s, we do not detect any optical source within the enhanced
XRT error circle (Goad et al., GCN Circ. 22725) down to a 5-sigma
limiting magnitude of V > 20.7 based on a comparison to APASS V-band
calibrators.
Further observations are planned.
GOTO is operated at the La Palma observing facilities of the University
of Warwick on behalf of a consortium including the University of
Warwick, Monash University, Armagh Observatory, the University of
Leicester, the University of Sheffield, the National Astronomical
Research Institute of Thailand (NARIT) and the Instituto de Astrofisica
de Canarias (IAC)
https://goto-observatory.org/
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