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The flaring blazars of the first 1.5 years of the AGILE mission
L. Pacciani, A. Bulgarelli, A. W. Chen +60
We report the AGILE gamma-ray observations and the results of the multiwavelength campaigns on seven flaring blazars detected by the mission: During two multiwavelength campaigns,…
The observation of Gamma Ray Bursts and Terrestrial Gamma-ray Flashes with AGILE
E. Del Monte, G. Barbiellini, F. Fuschino +50
Since its early phases of operation, the AGILE mission is successfully observing Gamma Ray Bursts (GRBs) in the hard X-ray band with the SuperAGILE imager and in the MeV range with…
First results about on-ground calibration of the Silicon Tracker for the AGILE satellite
AGILE Collaboration, P. W. Cattaneo, A. Argan +65
The AGILE scientific instrument has been calibrated with a tagged -ray beam at the Beam Test Facility (BTF) of the INFN Laboratori Nazionali di Frascati (LNF). The goal of the c…
AGILE detection of Cygnus X-3 γ-ray active states during the period mid-2009/mid-2010
A. Bulgarelli, M. Tavani, A. W. Chen +70
Cygnus X-3 (Cyg X-3) is a well-known microquasar producing variable emission at all wavelengths. Cyg X-3 is a prominent X-ray binary producing relativistic jets, and studying its h…
Neutral pion emission from accelerated protons in the supernova remnant W44
A. Giuliani, M. Cardillo, M. Tavani +41
We present the AGILE gamma-ray observations in the energy range 50 MeV - 10 GeV of the supernova remnant (SNR) W44, one of the most interesting systems for studying cosmic-ray prod…
Characterization of a tagged -ray beam line at the DANE Beam Test Facility
P. W. Cattaneo, A. Argan, F. Boffelli +64
At the core of the AGILE scientific instrument, designed to operate on a satellite, there is the Gamma Ray Imaging Detector (GRID) consisting of a Silicon Tracker (ST), a Cesium Io…
A weak compact jet in a soft state of Cygnus X-1
A. Rushton, J. C. A. Miller-Jones, R. Campana +8
We present evidence for the presence of a weak compact jet during a soft X-ray state of Cygnus X-1. Very-high-resolution radio observations were taken with the VLBA, EVN and MERLIN…
The AGILE observations of the hard and bright GRB 100724B
E. Del Monte, G. Barbiellini, I. Donnarumma +49
The observation of Gamma Ray Bursts (GRBs) in the gamma-ray band has been advanced by the AGILE and Fermi satellites after the era of the Compton Gamma-Ray Observatory. AGILE and F…
The brightest gamma-ray flaring blazar in the sky: AGILE and multi-wavelength observations of 3C 454.3 during November 2010
S. Vercellone, E. Striani, V. Vittorini +84
Since 2005, the blazar 3C 454.3 has shown remarkable flaring activity at all frequencies, and during the last four years it has exhibited more than one gamma-ray flare per year, be…
The remarkable gamma-ray activity in the gravitationally lensed blazar PKS 1830-211
I. Donnarumma, A. De Rosa, V. Vittorini +34
We report the extraordinary gamma-ray activity (E>100 MeV) of the gravitationally lensed blazar PKS 1830-211 (z=2.507) detected by AGILE between October and November 2010. The sour…
The Crab Nebula super-flare in April 2011: extremely fast particle acceleration and gamma-ray emission
E. Striani, M. Tavani, G. Piano +47
We report on the extremely intense and fast gamma-ray are above 100 MeV detected by AGILE from the Crab Nebula in mid-April 2011. This event is the fourth of a sequence of reported…
Spectral Evolution of the September 2010 gamma-ray flare from the Crab Nebula (V2)
V. Vittorini, M. Tavani, G. Pucella +1
Strong gamma-ray flares from the Crab Nebula have been recently discovered by AGILE and confirmed by Fermi-LAT. We study here the spectral evolution in the gamma-ray energy range a…
AGILE detection of extreme gamma-ray activity from the blazar PKS 1510-089 during March 2009. Multifrequency analysis
F. D'Ammando, C. M. Raiteri, M. Villata +112
We report on the extreme gamma-ray activity from the FSRQ PKS 1510-089 observed by AGILE in March 2009. In the same period a radio-to-optical monitoring of the source was provided…
A method to develop mission critical data processing systems for satellite based instruments. The spinning mode case
Francesco Lazzarotto, Sergio Fabiani, Enrico Costa +8
Modern satellite based experiments are often very complex real-time systems, composed by flight and ground segments, that have challenging resource related constraints, in terms of…
Discovery of Powerful Gamma-Ray Flares from the Crab Nebula
M. Tavani, A. Bulgarelli, V. Vittorini +65
The well known Crab Nebula is at the center of the SN1054 supernova remnant. It consists of a rotationally-powered pulsar interacting with a surrounding nebula through a relativist…