TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2689 SUBJECT: GRB 040827 - Radio Observations DATE: 04/09/01 17:50:41 GMT FROM: Alicia Soderberg at Caltech A. Soderberg (Caltech) and D. Frail (NRAO) report on behalf of a larger Caltech/NRAO/Carnegie collaboration: We observed the field of GRB 040827 (GCN 2670) with the Very Large Array on August 31.98 UT. We do not detect a radio counterpart to the X-ray/NIR afterglow candidate (GCNs 2678,2680) and place an upper limit of 70 microJy (2-sigma) at the position of the NIR transient. One radio source is detected within the Integral error circle (GCN 2672), with flux density 240 +- 35 microJy at: RA: 15:16:56.77 Dec: -16:08:56.7 (J2000). which is likely to be a pre-existing source, based on the observed number density of radio sources across the sky and the size of the Integral error circle."