[vsnet-grb-info 21127] GRB 180914B: AGILE/MCAL detection of a burst

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  23226
SUBJECT: GRB 180914B: AGILE/MCAL detection of a burst
DATE:    18/09/14 22:37:55 GMT
FROM:    Alessandro Ursi at INAF/IAPS  <alessandro.ursi at gmail.com>

GRB 180914B: AGILE/MCAL detection of a burst

A. Ursi (INAF/IAPS), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata),
A. Argan, M. Cardillo, Y. Evangelista, G. Minervini, G. Piano (INAF/IAPS),
F. Lucarelli, C. Pittori, F. Verrecchia (SSDC, and INAF/OAR),
A. Bulgarelli, V. Fioretti, F. Fuschino, N. Parmiggiani (INAF/OAS), M.
Marisaldi (INAF/OAS, and Bergen University), M. Pilia, A. Trois
(INAF/OA-Cagliari), I. Donnarumma (ASI), F. Longo (Univ. Trieste and INFN
Trieste), A. Giuliani (INAF/IASF-Mi), report on behalf of the AGILE Team:

The AGILE Mini-CALorimeter (MCAL) detected a long burst at T0 = 2018-09-14
18:23:02.22 +/- 0.01 s (UTC).

The event lasted T90 = 5.8 s (in the 0.4-100 MeV energy range), consisting
of two broad pulses, and released a total number of ~25,000 counts in the
detector, above an average background rate of ~1250 counts / s.

Further analysis is still in progress.

The AGILE-MCAL detector has a full solid angle acceptance, and is
operational in the range 0.4 - 100 MeV.