GCN Circular 25878
Subject
LIGO/Virgo S190930s: No counterpart candidates in AGILE-MCAL observations
Date
2019-09-30T15:36:47Z (5 years ago)
From
Martina Cardillo at INAF-IAPS <martina.cardillo@inaf.it>
M. Cardillo (INAF/IAPS), F. Longo (Univ. Trieste, and INFN Trieste), M.
Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), C. Casentini, G. Piano,
A. Ursi (INAF/IAPS), F. Lucarelli, C. Pittori, F. Verrecchia (SSDC, and
INAF/OAR), A. Bulgarelli, V. Fioretti, N. Parmiggiani
(INAF/OAS-Bologna), M. Pilia (INAF/OA-Cagliari),� report on behalf of
the AGILE Team:
In response to the LIGO/Virgo GW event S190930s at T0 = 2019-09-30
13:35:41 (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, the 100% of the S190930s 90 c.l. localization region (LR) 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 S190930s LR, from a minimum of 1.41E-06 erg cm^-2
to a maximum of 6.51E-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.