{
  "bibcode": "2017GCN.21804....1M",
  "body": "Javier Moldon and Rob Beswick (JBO-Manchester University) for the EuroVLBI team\n\n\nWe monitored the field around the optical counterpart SSS17a (Coulter\net al., LVC 21529) with the e-MERLIN radio interferometer between\nAugust 23 and 28, 2017. We conducted observations at C band centred at\n5 GHz with a bandwidth of 512 MHz for 5 hours between 13:00 and 18:00\nUTC in each consecutive day.\n\nNo significant detection above 5-sigma level is found in the runs with\nindividual rms noise levels between 31 and 39 microJy/beam. The upper\nlimits at 5-sigma level are 180, 160, 160, 190, 150, 150 microJy/beam\nfor days 23 to 28 August, respectively. The average half power beam\nwidth of the images is 266 mas x 33 mas with a position angle of 0\ndegrees. An image produced combining the data from the six runs yields\nan upper limit of 70 microJy/beam at the 5-sigma level.\n\nAdditional observations are planned with e-MERLIN to continue the\nmonitoring of the transient source.\n\ne-MERLIN is a National Facility operated by the University of\nManchester at Jodrell Bank Observatory on behalf of STFC.\n\n\n\n-- \nZsolt Paragi\nHead of User Support\n\nJoint Institute for VLBI ERIC (JIVE)    Web:  http://www.jive.eu\nOude Hoogeveensedijk 4                  Phone:  +31 (0)521-596-536\n7991 PD  Dwingeloo                        Mobile:  +31 (0)629-034-718\nthe Netherlands                                Fax:  +31 (0)521-596-539",
  "circularId": 21804,
  "createdOn": 1504511323000,
  "email": "zparagi@jive.eu",
  "subject": "LIGO/Virgo G298048: e-MERLIN upper limits on 5 GHz compact emission from SSS17a",
  "submitter": "Zsolt Paragi at Euro VLBI  <zparagi@jive.eu>",
  "eventId": "LIGO/Virgo G298048"
}