TITLE: GCN CIRCULAR NUMBER: 795 SUBJECT: GRB000911, Radio and Optical observations DATE: 00/09/14 21:14:28 GMT FROM: Edo Berger at Caltech E. Berger (Caltech), P. Price (RSAA, ANU), D. A. Frail (NRAO), T. Axelrod (RSAA, ANU), B. Schmidt (RSAA, ANU), and T. Galama (Caltech) report on behalf of a larger collaboration: "Beginning on September 14.36 we re-observed the IPN error box of GRB000911 (GCN #791) with the VLA at 8.46 GHz. We find one new source which is not cataloged in the NRAO VLA Sky Survey (NVSS), with a flux density of approximately 300 microJy, at RA=02:18:34.362 Dec=+07:44:27.65, with a conservative error of 0.6 arcsec in both. The flux at this position appears to have increased by approximately 2-sigma since our previous observation on September 13.49 (GCN #794). We have also re-examined the image from the Mount Stromlo Observatory 50-inch telescope of September 12.73 UT (GCN #793) at the position of the radio candidate. We detect a faint source with R ~ 20.6. We note that there are no sources at this position on the DPOSS images (Djorgovski et. al., 1999). Typical limiting magnitudes are B_J ~ 22.5, R_F ~ 20.8, and I_N ~ 19.5. Further observations at the VLA are planned." Djorgovski, S. G., Gal, R. R., Odewahn, S. C., DeCarvalho, R. R., Brunner, R., Longo, G. & Scaramella, R. 1999, in Wide Field Surveys in Cosmology, S. Colombi et. al., eds., p. 89 This message may be cited. [GCN OPS NOTE (23oct00): The RA,Dec position listed in the originally distributed version of this Circular was incorrectly listed as RA=2:18:34.41 Dec=7:44:28.76. The correct location is RA=02:18:34.362 Dec=+07:44:27.65.]