{
  "bibcode": "2017GCN.21228....1P",
  "body": "C. Pittori, F. Verrecchia (ASDC and INAF/OAR), M. Tavani (INAF/IAPS, and\nUniv. Roma Tor Vergata), F. Lucarelli (ASDC and INAF/OAR), G. Minervini\n(INAF/IAPS), A. Giuliani (INAF/IASF-Mi), A. Bulgarelli, N. Parmiggiani\n(INAF/IASF-Bo), I. Donnarumma (ASI), G. Piano (INAF/IAPS), M. Cardillo\n(INAF/IAPS), F. Longo (Univ. Trieste and INFN Trieste),\nA. Ursi (INAF/IAPS), F. Fuschino (INAF/IASF-Bo), Y. Evangelista\n(INAF/IAPS),\nM. Marisaldi (INAF/IASF-Bo and Bergen University), A. Argan (INAF/IAPS),\nM. Pilia, A. Trois  (INAF/OA-Cagliari), V. Fioretti (INAF/IASF-Bo),\nreport on behalf of the AGILE Team:\n\nIn response to the LIGO/Virgo GW trigger G288732 (GCN #21221), we performed\nan analysis of the AGILE Gamma-Ray Imaging Detector (GRID) data on\ndifferent\ntimescales. On LIGO trigger time (T0=2017-06-08 02:01:16.492 UTC) the GRID\nexposure covered approximately 40% of the LIGO localization region observed\nwith off-axis angles between 40 and 70 deg.\n\nAn analysis of the data in the energy range 50 MeV - 10 GeV was performed\non timescales from 2 to 100 sec centered at T0.\nPreliminary values of 3-sigma upper limits (UL) obtained within the\naccessible G288732 localization region are reported below:\n\nfrom 1.6e-06 to 3.1e-06 erg cm^-2 s^-1 for integration time of 2s\nfrom 1.6e-07 to 6.8e-07 erg cm^-2 s^-1 for integration time of 20s\nfrom 4.0e-08 to 3.0e-07 erg cm^-2 s^-1 for integration time of 100s\n\nThese ULs apply to a large fraction of the GRID-exposed LIGO localization\nregion.\n\nThese measurements were obtained with AGILE observing a large portion of\nthe sky in spinning mode. Additional analysis of AGILE data is in progress.",
  "circularId": 21228,
  "createdOn": 1496950369000,
  "email": "verrecchia@asdc.asi.it",
  "subject": "LIGO/Virgo G288732: AGILE GRID Observations",
  "submitter": "Francesco Verrecchia at ASDC, INAF-OAR  <verrecchia@asdc.asi.it>",
  "eventId": "LIGO/Virgo G288732"
}