GCN Circular 26306
Subject
LIGO/Virgo S191129u: upper limits from AGILE/MCAL observations
Date
2019-11-29T15:14:45Z (4 years ago)
From
Martina Cardillo at INAF-IAPS <martina.cardillo@inaf.it>
M. Cardillo (INAF/IAPS), C.Pittori (SSDC, and INAF/OAR), M. Tavani
(INAF/IAPS, and Univ. Roma Tor Vergata), C. Casentini, G. Piano, A.
Ursi (INAF/IAPS), F. Lucarelli, F. Verrecchia (SSDC, and INAF/OAR), A.
Bulgarelli, V. Fioretti, N. Parmiggiani (INAF/OAS-Bologna), M. Pilia
(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 S191129u at T0 = 2019-11-29
13:40:29 (UT), a preliminary analysis of the AGILE minicalorimeter
(MCAL) triggered data found no event� candidates within a time
interval covering -/+ 15 sec from the LIGO/Virgo T0.
At the T0, about 70% of the S191129u 90 c.l. localization region was
accessible to the AGILE MCAL.Three-sigma upper limits (ULs) are
obtained for a 1 s integration time at different celestial positions
within the accessible S191129u localization region, from a minimum of
1.64E-06 erg cm^-2 to a maximum of 7.59E-06 erg cm^-2 (assuming as
spectral model a single power law with photon index 1.5).
The AGILE-MCAL detector is a CsI detector with a 4 pi FoV, sensitive
in the energy range 0.4-100 MeV. Additional analysis of AGILE data is
in progress.