{
  "bibcode": "2019GCN.25884....1A",
  "body": "LIGO/Virgo S190930s: no counterpart candidates in AGILE-GRID observations\n\nM. Cardillo (INAF/IAPS),� F. Verrecchia (SSDC, and INAF/OAR), F. Longo \n(Univ. Trieste, and INFN Trieste), M. Tavani (INAF/IAPS, and Univ. Roma \nTor Vergata), C. Casentini, G. Piano, A. Ursi (INAF/IAPS), F. Lucarelli, \nC. Pittori (SSDC, and INAF/OAR), A. Bulgarelli, V. Fioretti, N. \nParmiggiani (INAF/OAS-Bologna), M. Pilia (INAF/OA-Cagliari),� report on \nbehalf of the AGILE Team:\n\nIn response to the LIGO/Virgo GW event S190930s at T0 = 2019-09-30 \n13:35:41 (UT), a preliminary analysis of the AGILE exposure at T0 shows \nthat the Gamma-Ray Imaging Detector (GRID) exposure covered about 27% of \nthe 90% c.l. localization region (LR) (40% of 90% c.l. LR is occulted by \nEarth) at an off-axis angle of about 5 degrees.\n\nWe performed an analysis of the GRID data in the energy range 50 MeV - \n10 GeV on T0, where good exposure of the S190930s 90% c.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- from 1.0e-06 to 4.9e-06 erg cm^-2 s^-1, with exposure of about 27% of \nthe LR over the time interval ( T0 -2s ; T0 + 2s );\n- from 8.4e-07 to 2.5e-06 erg cm^-2 s^-1, with exposure of about 26% of \nthe LR over the time interval ( T0s ; T0 + 10s );\n- from 1.4e-07 to 1.6e-06 erg cm^-2 s^-1, with exposure of about 26% of \nthe LR over the time interval ( T0 ; 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": 25884,
  "createdOn": 1569863208000,
  "email": "martina.cardillo@inaf.it",
  "subject": "LIGO/Virgo S190930s: no counterpart candidates in AGILE-GRID observations",
  "submitter": "Martina Cardillo at INAF-IAPS  <martina.cardillo@inaf.it>",
  "eventId": "LIGO/Virgo S190930s"
}