{
  "bibcode": "2020GCN.27055....1L",
  "body": "F. Longo (Univ. Trieste, and INFN Trieste), G. Piano, C. Casentini\n(INAF/IAPS), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata),\nM. Cardillo, A. Ursi (INAF/IAPS), F. Lucarelli, C. Pittori, F. Verrecchia\n(SSDC, and INAF/OAR), A. Bulgarelli, V. Fioretti, N. Parmiggiani\n(INAF/OAS-Bologna), M. Pilia (INAF/OA-Cagliari), report on behalf of\nthe AGILE Team:\n\nIn response to the LIGO-Virgo GW event S200213t at T0 = 2020-02-13\n04:10:40.328 (UTC) a preliminary analysis of the AGILE exposure at T0\nshows that the Gamma-Ray Imaging Detector (GRID) exposure covered\nthe 32% of the 90% c.l. localization region (LR) (4% of 90% c.l. LR is\nocculted by Earth).\n\nWe performed an analysis of the GRID data in the energy range\n50 MeV - 10 GeV on T0, where good exposure of the S200213t 90%\nc.l. LR was available.\n\nNo candidate gamma-ray transient was detected.\n\nThe following preliminary GRID values of 3-sigma upper limit (UL) are\nobtained:\n\nfrom 8.7e-07 to 7.2e-06 erg cm^-2 s^-1, with exposure of about 32% of\nthe LR over the time interval ( T0 -2s ; T0 + 2s );\nfrom 3.3e-07 to 6.4e-06 erg cm^-2 s^-1, with exposure of about 38% of\nthe LR over the time interval ( T0s ; T0 + 10s );\nfrom 3e-08 to 1.5e-06 erg cm^-2 s^-1, with exposure of about 48% of\nthe LR over the time interval ( T0s ; T0 + 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": 27055,
  "createdOn": 1581586073000,
  "email": "franzlongo1969@gmail.com",
  "subject": "LIGO/Virgo S200213t: upper limits from AGILE/GRID observations",
  "submitter": "Francesco Longo at U of Trieste,INFN Trieste  <franzlongo1969@gmail.com>",
  "eventId": "LIGO/Virgo S200213t"
}