{
  "bibcode": "2019GCN.24623....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,\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 S190521g at T0 = 2019-05-21 03:02:29\n(UT), a preliminary analysis of the AGILE minicalorimeter (MCAL) triggered\ndata found no event candidates within a time interval covering 100 sec\npreceding the LIGO-Virgo T0. Later times were not covered by MCAL exposure\nbecause of SAA interruption, until about + 800 sec from T0.\n\nThree-sigma upper limits (ULs) are obtained for a 1 s integration time at\ndifferent celestial positions within the accessible S190521g 90% c.l.\nlocalization region (almost 60% of the given GW contour), from a minimum of\n2.08E-06 erg cm^-2 to a maximum of 8.31E-06 erg cm^-2 (assuming as spectral\nmodel a single power law with photon index 1.5). The average off-axis angle\nis about 60 degrees.\n\nThe AGILE-MCAL detector is a CsI detector with a 4 pi FoV, sensitive in the\nenergy range 0.4-100 MeV. Additional analysis of AGILE data is in\nprogress.",
  "circularId": 24623,
  "createdOn": 1558416800000,
  "email": "claudio.casentini@inaf.it",
  "subject": "LIGO/Virgo S190521g: No counterpart candidates in AGILE-MCAL observations",
  "submitter": "Claudio Casentini at INAF-IAPS  <claudio.casentini@inaf.it>",
  "eventId": "LIGO/Virgo S190521g"
}