[vsnet-grb-info 27325] GRB 210207B: AGILE observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  29428
SUBJECT: GRB 210207B: AGILE observations
DATE:    21/02/08 13:45:28 GMT
FROM:    Alessandro Ursi at INAF/IAPS  <alessandro.ursi at gmail.com>

A. Ursi (INAF/IAPS), F. Longo (Univ. Trieste and INFN Trieste), C. Pittori,
F. Verrecchia (SSDC, and INAF/OAR), M. Tavani (INAF/IAPS, and Univ. Roma
Tor Vergata), A. Argan, M. Cardillo, C. Casentini, Y. Evangelista, G. Piano
(INAF/IAPS), F. Lucarelli (SSDC, and INAF/OAR), A. Bulgarelli, 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), A. Giuliani (INAF/IASF-Mi), report
on behalf of the AGILE Team:

The AGILE satellite detected GRB 210207B, reported by Swift (GCNs #29420,
#29422, #29427) and Konus-Wind (GCN #29426) at T0 = 2021-02-07 21:52:08
(UT).

The AGILE Mini-CALorimeter (MCAL; 0.4-100 MeV) scientific ratemeters
clearly detected the main peak of the burst, which occurred at T0 + 40 s,
as reported by Swift/BAT. The episode lasted ~4 s and released 7950 counts
in the MCAL detector, above a background rate of 1250 Hz. The AGILE
ratemeters light curve can be found at:
http://www.agilescienceapp.it/notices/GRB210207B_AGILE_RM.png . The event
was 160° off-axis.

Additional analysis of AGILE data is in progress.