{
  "bibcode": "2019GCN.26408....1C",
  "body": "C. Casentini (INAF/IAPS), F. Verrecchia (SSDC, and INAF/OAR), M. Tavani\n(INAF/IAPS, and Univ. Roma Tor Vergata), M. Cardillo, G. Piano, A. Ursi\n(INAF/IAPS), F. Lucarelli, C. Pittori (SSDC, and INAF/OAR), A. Bulgarelli,\nV. Fioretti, N. Parmiggiani (INAF/OAS-Bologna), M. Pilia\n(INAF/OA-Cagliari), F. Longo (Univ. Trieste, and INFN Trieste), report\non behalf of the AGILE Team:\n\nIn response to the LIGO-Virgo GW event S191213g at T0 = 2019-12-13\n04:34:08.142 UTC a preliminary analysis of the AGILE exposure at T0 shows\nthat the Gamma-Ray Imaging Detector (GRID) exposure covered about 11%\nof the 90% c.l. localization region (LR; 36% of 90% c.l. LR is occulted by\nEarth).\n\nWe performed an analysis of the GRID data in the energy range 50 MeV -\n10 GeV on T0, where good exposure of the S191213g 90% c.l. LR was\navailable.\n\nNo candidate gamma-ray transient was detected.\n\nThe following preliminary GRID values of 3-sigma upper limit (UL) are\nobtained:\n\nfrom 4.0e-06 to 9.9e-06 erg cm^-2 s^-1, with exposure of about 11% of\nthe LR over the time interval ( T0 -2s ; T0 + 2s );\nfrom 1.6e-06 to 9.4e-06 erg cm^-2 s^-1, with exposure of about 16% of\nthe LR over the time interval ( T0s ; T0 + 10s );\nfrom 4.9e-08 to 6.3e-07 erg cm^-2 s^-1, with exposure of about 34% of\nthe LR over the time interval ( T0s ; T0 + 100s );\n\nThese measurements were obtained with AGILE observing a large portion\nof the sky in spinning mode. Additional analysis of AGILE data is in\nprogress.",
  "circularId": 26408,
  "createdOn": 1576227826000,
  "email": "francesco.verrecchia@ssdc.asi.it",
  "subject": "LIGO/Virgo S191213g: upper limits from AGILE-GRID observations",
  "submitter": "Francesco Verrecchia at ASDC  <francesco.verrecchia@ssdc.asi.it>",
  "eventId": "LIGO/Virgo S191213g"
}