{
  "bibcode": "2019GCN.24382....1P",
  "body": "G. Piano, A. Ursi (INAF/IAPS), M. Tavani (INAF/IAPS, and Univ. Roma Tor\nVergata), F. Verrecchia (SSDC, and INAF/OAR), M. Cardillo, C. Casentini\n(INAF/IAPS), F. Lucarelli, C. Pittori (SSDC, and INAF/OAR), A. Bulgarelli,\nN. Parmiggiani (INAF/OAS-Bologna), M. Pilia (INAF/OA-Cagliari), F. Longo\n(Univ. Trieste, and INFN Trieste),\n\nreport on behalf of the AGILE Team:\n\nIn response to the LIGO-Virgo GW event S190503bf at T0 = 2019-05-03\n18:54:04.294 (UT), a preliminary analysis of the AGILE Gamma-Ray Imaging\nDetector (GRID) exposure shows that the S190503bf 90% c.l. localization\nregion (LR) was almost completely occulted by the Earth at T0. We performed\na preliminary analysis at different timescales; values of 3-sigma upper\nlimits (UL) in the energy range 50 MeV - 50 GeV are:\n\n(1) around 5.7e-7 erg cm^-2 s^-1 for an integration time of 5s, between T0\nand T0+5s, with the GRID exposure covering nearly 4% of the LR, observed at\noff-axis angles between 10 and 15 deg.\n\n(2) around 2.8e-7 erg cm^-2 s^-1 for an integration time of 10s, between T0\nand T0+10s, with the GRID exposure covering nearly 4% of the LR, observed\nat off-axis angles between 10 and 15 deg.\n\n(3) around 5.5e-8 erg cm^-2 s^-1 for an integration time of 100s, between\nT0 and T0+100s, with the GRID exposure covering nearly 4% of the LR,\nobserved at off-axis angles between 10 and 30 deg.\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": 24382,
  "createdOn": 1556922246000,
  "email": "giovanni.piano@inaf.it",
  "subject": "LIGO/Virgo S190503bf: AGILE-GRID Observations",
  "submitter": "Giovanni Piano at INAF-IAPS  <giovanni.piano@inaf.it>",
  "eventId": "LIGO/Virgo S190503bf"
}