[vsnet-grb-info 2645] GRB 060111: possible UVOT counterpart

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4482
SUBJECT: GRB 060111: possible UVOT counterpart
DATE:    06/01/11 13:31:24 GMT
FROM:    Alexander Blustin at MSSL-UCL  <ajb at mssl.ucl.ac.uk>

A. J. Blustin (UCL-MSSL), S. Zane (UCL-MSSL), S. R. Rosen (UCL-MSSL)
on behalf of the Swift/UVOT team

Further analysis of the initial UVOT data for GRB 060111 (Zane et al.,
GCN 4479) reveals a potential afterglow candidate at

RA,Dec (J2000) = 18:24:49.132  +37:36:14.47

within the refined XRT error circle (Goad et al., GCN 4481). The
source, significant at 8 sigma in an 3 arcsec radius aperture, has a
V band magnitude of 18.9 +/- 0.4 in a 200 s exposure starting at 72 s
after the BAT trigger. This magnitude is uncorrected for Galactic
extinction (E(B-V) ~0.1).