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GCN Circular 21224

Subject
LIGO/Virgo G288732: AGILE MCAL Observations
Date
2017-06-08T17:51:23Z (7 years ago)
From
Francesco Verrecchia at ASDC, INAF-OAR <verrecchia@asdc.asi.it>
F. Verrecchia (ASDC and INAF/OAR), A. Ursi (INAF/IAPS),  M. Tavani
(INAF/IAPS),
and Univ. Roma Tor Vergata), A. Argan (INAF/IAPS), A. Bulgarelli
(INAF/IASF-Bo),
M. Cardillo, G. Minervini, G. Piano (INAF/IAPS), C. Pittori, F. Lucarelli
(ASDC
and INAF/OAR), Y. Evangelista (INAF/IAPS), V. Fioretti, N. Parmiggiani
(INAF/IASF-Bo), I. Donnarumma (ASI), F. Fuschino, M. Marisaldi
(INAF/IASF-Bo
and Bergen University),  A. Giuliani (INAF/IASF-Mi), M. Pilia, A. Trois
(INAF/OA-Cagliari), F. Longo (Univ. Trieste and INFN Trieste) report on
behalf of the AGILE Team:

In response to the LIGO/Virgo GW event G288732 at T0 = 2017-06-08
02:01:16.492 UTC, a preliminary analysis of the AGILE MiniCALorimeter
(MCAL)
data found no event candidates within a time interval covering
approximately
-/+ 10 sec from the LIGO T0.

3-sigma ULs were computed for a 1 s integration time on different celestial
positions within the G288732 error region, for a typical value of the
fluence
of 6.4e-7 erg cm^-2 (assuming as spectral model a power law with photon
index
1.4). The AGILE-MCAL detector is a CsI detector with a 4-pi FoV, working in
the range 0.4 - 100 MeV.  Additional analysis of AGILE data is in progress.
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