[vsnet-grb-info 24084] LIGO/Virgo S191105e: upper limits from AGILE/MCAL observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  26183
SUBJECT: LIGO/Virgo S191105e: upper limits from AGILE/MCAL observations
DATE:    19/11/06 18:47:33 GMT
FROM:    Alessandro Ursi at INAF/IAPS  <alessandro.ursi at gmail.com>

A. Ursi, C. Casentini (INAF/IAPS), M. Tavani (INAF/IAPS, and Univ. Roma Tor
Vergata), M. Cardillo, G. Piano (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), F. Longo (Univ. Trieste,
and INFN Trieste), report on behalf of the AGILE Team:

In response to the LIGO/Virgo GW event S191105e at T0 = 2019-11-05 14:35:21
(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 50% of the S191105e 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 S191105e localization region, from a minimum of 1.55E-06 erg
cm^-2 to a maximum of 7.19E-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.