GCN Circular 7042

GRB 071104: Gamma Ray Burst Localization by SuperAGILE

I. Donnarumma, Y. Evangelista, M. Feroci, E. Costa, E. Del Monte, 
I. Lapshov, F. Lazzarotto, L. Pacciani, M. Rapisarda, P. Soffitta
(INAF/IASF Rome), A. Giuliani, S. Vercellone, A. Chen, S. Mereghetti, A. 
Pellizzoni, F. Perotti, F. Fornari, M. Fiorini, P. Caraveo, 
A. Zambra (INAF/IASF Milan), A. Bulgarelli, F. Gianotti, 
M. Trifoglio, G. Di Cocco, C. Labanti, F. Fuschino, M. Marisaldi, 
M. Galli, (INAF/IASF Bologna), M. Tavani, G. Pucella, F. D'Ammando, V. 
Vittorini, A. Argan, A. Trois (INAF/IASF Rome), G. Barbiellini, 
F. Longo (INFN Trieste), P. Picozza, A. Morselli (INFN Roma-2),  
M. Prest, E. Vallazza (Universita` dell'Insubria), P. Lipari, 
D. Zanello (INFN Roma-1), F. Mauri (INFN Pavia) and  P. Giommi, 
C. Pittori, L. A. Antonelli (ASDC) and L. Salotti (ASI),
on bhealf of the AGILE Team, report:

"SuperAGILE detected and localized a gamma ray burst 
on November 4th, at 11:41:23 UT. The event was approximately 
22 degrees off-axis. The observed duration in the 20-60 keV
energy range is about 12 seconds, with a time structure composed
of two main peaks. The burst was triggered and localized during
on ground data processing, since the onboard localization procedure
is not active yet.
The burst position was reconstructed as (RA, Dec) (295.600 deg, 
14.645 deg), which is:

RA(J2000) = 19h 42m 23.9s
Dec(J2000) = +14d 38' 42"

with an uncertainty of 8' radius. The given uncertainty accounts 
for both the statistical and systematic errors. 

An analysis of the AGILE Gamma Ray Imager (GRID) data is in progress.
The Minicalorimeter also detected the event up to the energy range 0.7-1.4 
MeV."

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