{
  "bibcode": "2017GCN.21526....1P",
  "body": "G. Piano (INAF/IAPS), F. Verrecchia (SSDC and INAF/OAR), M. Pilia\n(INAF/OA-Cagliari), M. Cardillo (INAF/IAPS), M. Tavani (INAF/IAPS, and Univ.\nRoma Tor Vergata), A. Bulgarelli (INAF/IASF-Bo), C. Pittori (SSDC and\nINAF/OAR), I. Donnarumma (ASI), F. Longo (Univ. Trieste and INFN Trieste),\nA. Ursi, G. Minervini, A. Argan, Y. Evangelista (INAF/IAPS), F. Lucarelli\n(SSDC and INAF/OAR),  N. Parmiggiani, A. Zoli, V. Fioretti, F. Fuschino\n(INAF/IASF-Bo), A. Trois (INAF/OA-Cagliari) M. Marisaldi (INAF/IASF-Bo and\nBergen University), A. Giuliani (INAF/IASF-Mi), report on behalf of the\nAGILE Team:\nIn response to the LIGO/Virgo GW trigger event G298048 at T0 = 2017-08-17\n12:41:04.446 UTC (GCN #21505) and the Fermi-GBM trigger event 170817.529\nat T1 = 12:41:06.470 UTC (GCN #21506), we performed an analysis of the\nAGILE Gamma-Ray Imaging Detector (GRID) data on different  timescales. On\nFermi-GBM trigger time (T1) the GRID exposure covered nearly 10% of the\nFermi-GBM 3-sigma localization region, observed at off-axis angles between\n15 and 55 deg.\n\nDue to Earth occultation the GRID field of view did not cover the new revised\nHLV G298048 90% localization region (GCN #21513).\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 T1.\nPreliminary values of 3-sigma upper limits (UL) obtained within the\naccessible Fermi-GBM 3-sigma localization region are reported below:\n\nfrom 1.4e-06 to 2.2e-06 erg cm^-2 s^-1 for integration time of 2s\nfrom 1.4e-07 to 6.6e-07 erg cm^-2 s^-1 for integration time of 20s\nfrom 3.2e-08 to 8.8e-08 erg cm^-2 s^-1 for integration time of 100s\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": 21526,
  "createdOn": 1503008563000,
  "email": "verrecchia@asdc.asi.it",
  "subject": "LIGO/Virgo G298048: AGILE GRID observations",
  "submitter": "Francesco Verrecchia at ASDC, INAF-OAR  <verrecchia@asdc.asi.it>",
  "eventId": "LIGO/Virgo G298048"
}