TITLE: GCN CIRCULAR NUMBER: 11534 SUBJECT: GRB 110106B: WHT candidate afterglow DATE: 11/01/07 02:34:14 GMT FROM: Andrew Levan at U.of Leicester A.J. Levan (U. Warwick), N.R. Tanvir, K. Wiersema (U. Leicester), L. Coccato (ESO) report for a larger collaboration: We observed the location of GRB 110106B (Sbarufatti et al. GCN 11525) with the William Herschel Telescope and ACAM. Observations were obtained in the i-band, and began at 7 Jan, 00:41 UT, approximately 3 hours after the burst. Within the refined XRT localization (Beardmore et al. GCN 11532) we find a source at RA(J2000) 08:56:37.02 DEC(J2000) 47:00:09.8 with an uncertainty of ~0.5" in each axis. The source appears to be extended, but may include a point source contribution on top of the extended emission. Photometry of the object suggests i~22.5. This is marginally brighter than the limit of SDSS observations of the region, and suggests some afterglow contribution to the observed flux at this time. Further observations are encouraged."