[vsnet-grb-info 24129] LIGO/Virgo S191110af: upper limits from AGILE/MCAL observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  26228
SUBJECT: LIGO/Virgo S191110af: upper limits from AGILE/MCAL observations
DATE:    19/11/11 09:57:23 GMT
FROM:    Martina Cardillo at INAF-IAPS  <martina.cardillo at inaf.it>

C. Pittori (SSDC, and INAF/OAR), M.Cardillo (INAF/IAPS), F. Verrecchia 
(SSDC, and INAF/OAR), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), 
C. Casentini, G. Piano, A. Ursi, (INAF/IAPS), F. Lucarelli (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 S191110af at T0 = 2019-11-10 
23:06:44 (UT), analysis of AGILE data shows that the satellite at T0 was 
in the South Atlantic Anomaly (SAA). Scientific telemetry was inhibited 
during the time interval (T0 -700 s; T0 + 200 s).

At T0+200s we obtained a MCAL preliminary 3-sigma fluence upper limits 
(UL) for a 1 s integration time t different celestial positions within 
the accessible S191110af localization region, from a minimum of 1.46E-06 
erg cm^-2 to a maximum of 6.76E-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.