{
  "bibcode": "2017GCN.21589....1A",
  "body": "K.D. Alexander (Harvard), W. Fong (Northwestern), and E. Berger (Harvard)\nreport on behalf of a larger collaboration:\n\nWe analyzed observations taken with the Very Large Array beginning on 2017\nAug 18 at 22:04:57 UT (1.39 d after the Fermi trigger time; Blackburn et\nal., LVC GCN 21506). In two hours of observations at a mean frequency of\n10.0 GHz, we detect the source reported in our previous VLA observations\n(Alexander et al., LVC GCN 21545; 21548) and in ATCA observations\n(Bannister et al., LVC GCN 21559) at a similar flux level. We measure an\nimproved position of:\n\nRA = 13:09:47.704\n\nDec =-23:23:02.45\n\nwith an uncertainty of 0.1��� in each coordinate. We note that the beam size\nin our images is 3.1��� by 1.4���, significantly smaller than our previous VLA\nobservations. The lack of variability over a 19.9 hr period along with full\nspatial coincidence with NGC 4993 indicates that this radio emission is\noriginating from the host galaxy.\n\nWe further note that there is no detected emission at the position of the\noptical transient (Coulter et al., LVC GCN 21529) down to a 3-sigma limit\nof 17 microJy.",
  "circularId": 21589,
  "createdOn": 1503136293000,
  "email": "kalexander@cfa.harvard.edu",
  "subject": "LIGO/Virgo G298048: Further VLA Observations",
  "submitter": "Kate Alexander at Harvard U  <kalexander@cfa.harvard.edu>",
  "eventId": "LIGO/Virgo G298048"
}