{
  "bibcode": "2017GCN.21438....1G",
  "body": "A. Goldstein (USRA) reports on behalf of the GBM-LIGO Group:\nL. Blackburn (CfA), M. S. Briggs (UAH), J. Broida (Carleton College), E.\nBurns (NASA/GSFC), J. Camp (NASA/GSFC), T. Dal Canton (NASA/GSFC), N.\nChristensen (Carleton College), V. Connaughton (USRA), R. Hamburg (UAH), C.\nM. Hui (NASA/MSFC), P. Jenke (UAH), D. Kocevski (NASA/MSFC), N. Leroy\n(LAL), T. Littenberg (NASA/MSFC), J. McEnery (NASA/GSFC), R. Preece (UAH),\nJ. Racusin (NASA/GSFC), P. Shawhan (UMD), K. Siellez (GATech), L. Singer\n(NASA/GSFC), J. Veitch (Birmingham), P. Veres (UAH), C. Wilson-Hodge\n(NASA/MSFC)\n\nAt the G296853 event time, GBM was taking data and viewing the entire\nun-occulted sky approximately 67 degrees from Earth center (RA = 66.9, DEC\n= +23.4), which includes 49% of the LIGO Bayestar probability map.\n\nThere was a single GBM on-board trigger within 1 hour after the event time.\nHowever, this trigger was likely due to a terrestrial gamma-ray flash and\nunrelated to the G296853 event. The untargeted ground-based search of GBM\ndata for short-duration GRBs (Briggs et al., in prep) found a\nlow-reliability short GRB candidate ~76 minutes after the G296853 event\ntime, although the localization of this candidate is entirely inconsistent\nwith the Bayestar map.\n\nThe targeted search of the GBM data ([1], [2]) also did not find a\nsignificant gamma-ray signal. This search processes time scales of 0.256 to\n8.192 s within 30 s of the LIGO event. No interesting gamma-ray candidate\nwas found within this time window.\n\nFurther analysis and upper limits will be reported later.\n\n[1] L. Blackburn et al. 2015, ApjS 217, 8\n[2] A. Goldstein et al. arXiv:1612.02395",
  "circularId": 21438,
  "createdOn": 1502298239000,
  "email": "adam.michael.goldstein@gmail.com",
  "subject": "LIGO/Virgo G296853: Fermi GBM Observations",
  "submitter": "Adam Goldstein at Fermi/GBM  <adam.michael.goldstein@gmail.com>",
  "eventId": "LIGO/Virgo G296853"
}