{
  "bibcode": "2017GCN.21740....1L",
  "body": "C. Lynch (University of Sydney), T. Murphy (University of Sydney),\nD. Kaplan (UWM), K. Bannister (CSIRO), D. Dobie (University of Sydney)\non behalf of the VAST collaboration.\n\nFollowing Lynch et al. (LVC GCN 21670), we observed a third epoch of\nNGC 4993 with the Australia Telescope Compact Array at 8.5 and 10.5 GHz.\nObservations started at 2017-08-27 23:26:24.9 UT and ended at\n2017-08-28 9:00:00 UT with approximately 2.3 hours of on-source time.\n\nWe fit and subtracted a point-source at the optical position of NGC 4993\n(13:09:47.71, -23:23:01.79; Skrutskie et al. 2003, 2MASS Extended Source\nCatalog). From this we set a 3-sigma upper limit of 54 uJy and 39 uJy on\nradio emission from SSS17a at 8.5 and 10.5 GHz respectively.\n\nSubsequent epochs are planned.\n\nThank you to CSIRO staff for supporting these observations.",
  "circularId": 21740,
  "createdOn": 1503978562000,
  "email": "tara.murphy@sydney.edu.au",
  "subject": "LIGO/Virgo G298048: Further ATCA follow-up of SSS17a in NGC 4993",
  "submitter": "Tara Murphy at U of Sydney  <tara.murphy@sydney.edu.au>",
  "eventId": "LIGO/Virgo G298048"
}