[vsnet-grb-info 14289] GRB 131218A: Zadko observatory - Gingin optical candidate

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  15603
SUBJECT: GRB 131218A: Zadko observatory - Gingin optical candidate
DATE:    13/12/19 21:45:22 GMT
FROM:    Alain Klotz at IRAP-CNRS-OMP  <Alain.Klotz at free.fr>

A. Klotz (IRAP-CNRS-OMP), D. Macpherson (UWA/ICRAR), D. Coward (UWA),
B. Gendre, M. Boer, K. Siellez, H. Dereli , O. Bardho (UNS-CNRS-OCA),
A. Williams (PO-UWA), R. Martin (PO-UWA), D. Turpin (IRAP-CNRS-OMP)
report:

We imaged the field of GRB 131218A detected by INTEGRAL
(trigger 6409) with the Zadko robotic telescope (D=100cm)
located at the observatory - Gingin, Australia.

The observations are R filtered, started 0.87 day after
the GRB trigger. The limiting magnitude of the co added
image is Rlim = 20.5.

In the error box provided by INTEGRAL notice we detect
only one faint candidate not present on the DSS atlas:

RA(J2000.0) = 07h 35m 10.50s
DEC(J2000.0) = -64d 43' 19.4"

OT was R~20.0 0.87 day after GRB.

We have no more images so we cannnot conclude if it
is a fading source or not. Additional images are
programmed to be recorded in the next nights.