[vsnet-grb-info 13007] GRB 130327B: gamma-ray detection by AGILE

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  14344
SUBJECT: GRB 130327B: gamma-ray detection by AGILE
DATE:    13/03/27 23:24:56 GMT
FROM:    Ettore Del Monte at IASF/INAF  <sa.grb at iaps.inaf.it>

F. Longo (University of Trieste and INFN Trieste), A. Giuliani  
(INAF/IASF Milan), M. Marisaldi (INAF/IASF Bologna), E. Del Monte  
(INAF/IAPS Rome), F. Lazzarotto, I. Donnarumma, Y. Evangelista, M.  
Feroci, L. Pacciani, P. Soffitta, E. Costa, I. Lapshov, M. Rapisarda  
(INAF/IAPS Rome), G. Barbiellini, (INFN Trieste), A. Bulgarelli, F.  
Gianotti, M. Trifoglio, G. Di Cocco, C. Labanti, F. Fuschino, M. Galli  
(INAF/IASF Bologna), A. Chen, S. Mereghetti, F. Perotti, P. Caraveo  
(INAF/IASF Milan), M. Tavani, V. Vittorini, A. Argan, G. Piano, S.  
Sabatini, M. Cardillo (INAF/IASF Rome), G. Pucella (ENEA Frascati), A.  
Pellizzoni, A. Trois (INAF/OA Cagliari), M. Pilia (ASTRON), S.  
Vercellone (INAF/IASF Palermo), P. W. Cattaneo, A. Rappoldi (INFN  
Pavia), P. Picozza, A. Morselli, E. Striani, (INFN Roma-2), M. Prest,  
E. Vallazza (Universita` dell'Insubria), P. Lipari, D. Zanello (INFN  
Roma-1), P. Giommi, C. Pittori, F. Lucarelli, P. Santolamazza, F.  
Verrecchia (ASDC) and G. Valentini (ASI), on behalf of the AGILE Team,  
report:

The AGILE Gamma Ray Imaging Detector (GRID) detected emission from GRB  
130327B, localised by Fermi/GBM  
(http://gcn.gsfc.nasa.gov/other/386065447.fermi). The GRB occurred at  
approximately 28 deg off-axis in the field of view
of the AGILE/GRID.

A preliminary analysis of the AGILE/GRID data in temporal coincidence  
with the GRB shows a significant excess of gamma-ray events above 80  
MeV at the location of the event. Most of the events detected by the  
AGILE/GRID have times between ~ t0 + 9 sec and t0 + 14 sec where t0 is  
27 March 2013 at 08:24:04.05 UT.

The GRB was also detected also by the AGILE/MCAL, operating in the  
energy range 0.5 - 100 MeV.

A more detailed analysis of the AGILE data is in progress.
More observations of this interesting burst are strongly encouraged.

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