{
  "bibcode": "2019GCN.24457....1V",
  "body": "F. Verrecchia (SSDC, and INAF-OAR), A. Ursi (INAF/IAPS),  M. Tavani\n(INAF/IAPS,\nand Univ. Roma Tor Vergata), F. Lucarelli, C. Pittori (SSDC, and INAF-OAR),\nM. Cardillo, C. Casentini, G. Piano (INAF/IAPS),  A. Bulgarelli, V.\nFioretti,\nN. Parmiggiani (INAF/OAS-Bologna), M. Pilia (INAF/OA-Cagliari), F. Longo\n(Univ. Trieste, and INFN Trieste), report on behalf of the AGILE Team:\n\nIn response to the LIGO-Virgo GW event S190510g at T0 = 2019-05-10\n02:59:39.292 UTC (GCN #24442 including an updated localization) a\npreliminary\nanalysis of the AGILE exposure at T0 showed that about 60% of the S190510g\n90% c.l. localization region (LR) was exposed at off-axis angles between 25\nand 75 deg by the Gamma-Ray Imaging Detector (GRID).\n\nWe performed an analysis of the GRID data in the energy range 50 MeV -\n10 GeV\nover three time intervals before and after T0, where good exposure of the\nS190510g 90% c.l. LR was available. No candidate gamma-ray transient was\ndetected.\n\nThe following preliminary GRID 3-sigma upper limit (UL) values are obtained:\n\n(T0 - 2s; T0 + 2s): from 7.4e-07 to 1.7e-06 erg cm^-2 s^-1\n(T0 - 10s; T0 + 10s): from 1.5e-07 to 3.5e-07 erg cm^-2 s^-1\n(T0; T0 + 100s): from 4.2e-08 to 1.8e-07 erg cm^-2 s^-1\n\nAn image of the AGILE-GRID exposure near T0 is available at the site\nhttps://tools.ssdc.asi.it/ImgView/Agile/S190510g_d4s_FM_UL-E50bemod8\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": 24457,
  "createdOn": 1557505642000,
  "email": "francesco.verrecchia@ssdc.asi.it",
  "subject": "LIGO-Virgo S190510g: AGILE GRID observations",
  "submitter": "Francesco Verrecchia at ASDC  <francesco.verrecchia@ssdc.asi.it>",
  "eventId": "LIGO-Virgo S190510g"
}