[vsnet-grb-info 7819] GRB 090509 - Zadko Telescope observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  9363
SUBJECT: GRB 090509 - Zadko Telescope observations
DATE:    09/05/15 11:29:00 GMT
FROM:    David Coward at U of Western Aus.  <coward at physics.uwa.edu.au>

SUBJECT: GRB 090509 - Zadko Telescope observations
FROM: D.M Coward at UWA

Liang Yan and A. Imerito report on behalf of the Zadko Telescope Team:

D.M. Coward, Liang Yan, A. Imerito, T.P. Vaalsta, A. Ahmet, J. Zadko,  
D. Blair,
R. Burman, P. Luckas, S. Gordon, K. Frost, A. Fletcher, J. Moore
(University of Western Australia)
M. Todd, M. Zadnik (Curtin University)
M. Boer, A. Klotz (TAROT)

The 1 m Zadko Telescope team observed the field of GRB 090509  
(trigger=351525,
D. Grupe et al. GCN 9325) 8hr after the Swift trigger.

We stacked 48x5s unfiltered images of the field from
13:10:32 to 13:24:16 UT (2009-05-09)

No candidate afterglow was observed at the GROND position (GCN 9326)  
nor at
the BAT-refined position (GCN 9349), down to an Rmag of approx. 17.6.  
(The OA
magnitude limit was estimated by comparing nearby USNO-B1 reference  
stars.)

The Zadko Telescope is currently being commissioned.
This message is quotable in publications

Dr David Coward
Senior Research Fellow
School of Physics
University of Western Australia
Crawley WA 6009

Tel: +61 8 6488 4563
Mobile 0423981240
Fax: +61 8 6488 1170