{
  "bibcode": "2011GCN.12422....1M",
  "body": "M. Michalowski (U. Edinburgh), D. Xu (WIS), J. Stevens, P. Edwards, D.\nBock, B. Hiscock, R. Wark (CSIRO) report:\n\nWe continued to observe the BAT field of GRB 111005A (Saxton et al.,\nGCN 12413) with the Australia Telescope Compact Array (ATCA), starting\nat 07:04 UT, 8th Oct. 2011 (i.e., 71 hours after the burst) at the\nfrequency of 18 GHz.\n\nWe detected a radio source with the coordinates\n\nRA(J2000) = 14:53:07.74\nDec(J2000) = -19:44:08.9\n\ncoincident with the disk of the local galaxy ESO 580-49 at z=0.013\n(M_B ~ -18.6 mag).\n\nTogether with our earlier upper limit at this position at 5.5 GHz (Xu\net al., GCN 12421), it would be difficult to ascribe the 18 GHz\ndetection to the contribution of the ESO 580-49 galaxy itself as this\nwould require the galaxy spectrum to fall with decreasing radio\nfrequency. Hence, we suggest the above source to be the radio\nafterglow of GRB 111005A and thus an associated supernova is expected.\n\nOur 18 GHz position is ~3.4 arcsec away from the 5 GHz source EVLA-S1\nreported by Zauderer et al., (GCN 12419), well within the positional\nuncertainties of the ATCA observation.\n\nFurther observations are planned.",
  "circularId": 12422,
  "createdOn": 1318105214000,
  "email": "dong.dark@gmail.com",
  "subject": "GRB 111005A: ATCA 18 GHz detection",
  "submitter": "Dong Xu at Weizmann Inst  <dong.dark@gmail.com>",
  "eventId": "GRB 111005A"
}