{
  "bibcode": "2020GCN.27791....1W",
  "body": "J. Wood (NASA/MSFC) reports on behalf of the Fermi-GBM team:\n\nFor the IceCube high-energy neutrino candidate event IceCube-200523A\n(GCN 27787), at the event time Fermi-GBM was observing the reported\nneutrino location at:\n\nRA: 338.64 (+10.77 -6.07 deg 90% PSF containment) J2000\nDee: 1.75 (+1.84 -3.54 deg 90% PSF containment) J2000\n\nThere was no Fermi-GBM onboard trigger around the event time of the\nneutrino candidate. An automated, blind search for short gamma-ray\nbursts below the onboard triggering threshold in Fermi-GBM also\nidentified no counterpart candidates. The GBM targeted search,\nthe most sensitive, coherent search for GRB-like signals,\nwas run from +/-30 s around the neutrino candidate time.\nFrom this search, no significant signal was found related\nto IceCube-200523A.\n\nWe set upper limits on impulsive gamma-ray emission. Using the\nrepresentative soft, normal, and hard GRB-like templates described in\narXiv:1612.02395, we set the following 3 sigma flux upper limits over\n10-1000 keV (in units of 10^-7 erg/s/cm^2):\n\nTimescale   Soft     Normal   Hard\n-------------------------------------------\n0.128 s:    6.5      9.5      17.\n1.024 s:    2.2      2.9      6.1\n8.192 s:    0.9      1.3      1.8\n\nThese results are preliminary.",
  "circularId": 27791,
  "createdOn": 1590253054000,
  "email": "joshua.r.wood@nasa.gov",
  "subject": "IceCube-200523A: Upper limits from Fermi-GBM Observations",
  "submitter": "Joshua Wood at MSFC/Fermi-GBM  <joshua.r.wood@nasa.gov>",
  "eventId": "IceCube-200523A"
}