[vsnet-grb-info 11525] GRB 120211A - Faulkes Telescope South Observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  12921
SUBJECT: GRB 120211A - Faulkes Telescope South Observations
DATE:    12/02/11 15:02:33 GMT
FROM:    Francisco Virgili at Liverpool John Moores U  <fjv at astro.livjm.ac.uk>

F. J. Virgili, C.G. Mundell, I.A. Steele, R.J. Smith, C.J. Mottram, D.F. 
Bersier, S. Kobayashi (Liverpool, JMU), A. Gomboc, J. Japelj, D. Kopac 
(U. Ljubljana), C. Guidorzi (U. Ferrara), A. Melandri (INAF-OAB) report:

"The 2-m Faulkes Telescope South responded robotically to followup 
GRB120211A
(SWIFT trigger 514586; Sonbas et al. GCN 12920) 3.77 min after the GRB 
trigger time.
No optical counterpart within the XRT error circle is detected to the 
following conservative limits:

R > 21.5 mag (vs USNOB1) at 0.51 hrs from BAT trigger (total exposure = 
720 s)
i' > 20.4 mag (vs USNOB1) at 0.58 hrs from BAT trigger (total exposure = 
700 s)

We also note the presence of a USNOB-1 object lying on the XRT error 
circle border:
05:51:00.786, -24:46:23.86, with R2=20.19 and I=18.74 mag

This message may be cited"