[vsnet-grb-info 27933] GRB 210517A: AGILE detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  30036
SUBJECT: GRB 210517A: AGILE detection
DATE:    21/05/17 12:32:54 GMT
FROM:    Alessandro Ursi at INAF/IAPS  <alessandro.ursi at gmail.com>

A. Ursi (INAF/IAPS), C. Pittori (SSDC, and INAF/OAR), G. Piano (INAF/IAPS),
M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), A. Argan, M. Cardillo,
C. Casentini, Y. Evangelista (INAF/IAPS), F. Lucarelli, F. Verrecchia
(SSDC, and INAF/OAR), A. Bulgarelli, A. Di Piano,  V. Fioretti, F.
Fuschino, N. Parmiggiani (INAF/OAS-Bologna), M. Marisaldi
(INAF/OAS-Bologna, 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 satellite detected the long GRB 210517A at T0 = 2021-05-17
05:28:01 s (UTC), reported by Swift (GCNs #30032, #30034).

The burst is visible in the AGILE scientific ratemeters of the SuperAGILE
(SA; 20-60 keV) and MiniCALorimeter (MCAL; 0.4-100 MeV) detectors. The
event lasted ~6 s and released a total number of 663 counts in the SA
detector (above a background rate of 77 Hz) and 8759 counts in the MCAL
detector (above a background rate of 1200 Hz). The AGILE ratemeter light
curves can be found at
http://www.agilescienceapp.it/notices/GRB210517A_AGILE_RM.png .

Additional analysis of AGILE data is in progress.