A. Melandri, C. Guidorzi, C. Mundell, A. Gomboc, I.A. Steele,
C.J. Mottram, A. Monfardini, S. Kobayashi, R.J. Smith,
M.F. Bode (Liverpool JMU), P. O'Brien, E. Rol, N. Bannister
"The 2-m Faulkes North Telescope robotically followed up
GRB060510B (Krimm et al., GCN 5096) and began observing
2.8 minutes after the GRB trigger time.
We confirm the detection of fading OT at the location
identified by Mirabel et al. (GCN 5097) and Price et al.
The automatic "detection mode" procedure did not detect an
optical afterglow candidate in the XRT error circle (Krimm et al.,
GCN 5096) reported by Mirabal et al. (GCN 5097) in the first
short-exposure R images.
However, following visual inspection of subsequent co-added and
single-frame images, the afterglow was clearly detected and found
to be fading.
We estimate source magnitudes to be i'~20.2 +/- 0.2, at 31
min post trigger, and R~21.0 +/- 0.5 for the co-added image
from 2.8 to 20.2 min after the burst (total exposure time 240 sec).
Further analysis and observation are still ongoing."