381 citations · 3.4k across the 101 of their papers we have counts for
26 papers · 1 filter
Satellite-borne -ray astrophysics from coherent interactions in oriented crystals
Pietro Monti-Guarnieri, Gianfranco Paternò, Alexei Sytov +20
High-density and high-Z crystals are key elements of most space-borne -ray telescopes operating at gigaelectronvolt energies (such as Fermi-LAT). The lattice structure is usuall…
An updated list of AGILE bright gamma-ray sources and their variability in pointing mode
F. Verrecchia, C. Pittori, A. W. Chen +76
We present a variability study of a sample of bright gamma-ray (30 MeV -- 50 GeV) sources. This sample is an extension of the first AGILE catalogue of gamma-ray sources (1AGL), obt…
The characterization of the distant blazar GB6 J1239+0443 from flaring and low activity periods
L. Pacciani, I. Donnarumma, K. D. Denney +64
In 2008 AGILE and Fermi detected gamma-ray flaring activity from the unidentified EGRET source 3EG J1236+0457, recently associated with a flat spectrum radio quasar GB6 J1239+0443…
Galactic Sources Science With Agile: The Case Of The Carina Region
S. Sabatini, M. Tavani, E. Pian +63
During its first 2 years of operation, the gamma-ray AGILE satellite accumulated an extensive dataset for the Galactic plane. The data have been monitored for transient sources and…
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…
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…
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…
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…
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…
Study of the gamma-ray source 1AGL J2022+4032 in the Cygnus Region
A. W. Chen, G. Piano, M. Tavani +58
Identification of gamma-ray-emitting Galactic sources is a long-standing problem in astrophysics. One such source, 1AGL J2022+4032, coincident with the interior of the radio shell…
Agile Observations of the "Soft" Gamma-Ray Pulsar PSR B1509-58
M. Pilia, A. Pellizzoni, A. Trois +60
We present the results of new Agile observations of PSR B1509-58 performed over a period of 2.5 years following the detection obtained with a subset of the present data. The modula…
AGILE detection of GeV gamma-ray emission from the SNR W28
A. Giuliani, M. Tavani, A. Bulgarelli +59
Supernova remnants (SNRs) are believed to be the main sources of Galactic cosmic rays. Molecular clouds associated with SNRs can produce gamma-ray emission through the interaction…
A year-long AGILE observation of Cygnus X-1 in hard spectral state
E. Del Monte, M. Feroci, Y. Evangelista +52
We present the observation of Cyg X-1 in hard spectral state performed during the AGILE Science Verification Phase and Observing Cycle 1 in hard X-rays (with SuperAGILE) and gamma…
Episodic Transient Gamma-Ray Emission from the Microquasar Cygnus X-1
S. Sabatini, M. Tavani, E. Striani +58
Cygnus X-1 is the archetypal black hole (BH) binary system in our Galaxy. We report the main results of an extensive search for transient gamma-ray emission from Cygnus X-1 carried…
Multiwavelength observations of 3C 454.3. III. Eighteen months of AGILE monitoring of the "Crazy Diamond"
S. Vercellone, F. D'Ammando, V. Vittorini +110
We report on 18 months of multiwavelength observations of the blazar 3C 454.3 (Crazy Diamond) carried out in July 2007-January 2009. We show the results of the AGILE campaigns whic…
Direct Evidence for Hadronic Cosmic-Ray Acceleration in the Supernova Renmant IC 443
M. Tavani, A. Giuliani, A. W. Chen +59
The Supernova Remnant (SNR) IC 443 is an intermediate-age remnant well known for its radio, optical, X-ray and gamma-ray energy emissions. In this Letter we study the gamma-ray emi…
Detection of Gamma-Ray Emission from the Vela Pulsar Wind Nebula with AGILE
A. Pellizzoni, A. Trois, M. Tavani +68
Pulsars are known to power winds of relativistic particles that can produce bright nebulae by interacting with the surrounding medium. These pulsar wind nebulae (PWNe) are observed…
Temporal properties of GX 301-2 over a year-long observation with SuperAGILE
Y. Evangelista, M. Feroci, E. Costa +52
We present the long-term monitoring of the High Mass X-ray Binary GX 301-2 performed with the SuperAGILE instrument on-board the AGILE mission. The source was monitored in the 20-6…
Discovery of extreme particle acceleration in the microquasar Cygnus X-3
M. Tavani, A. Bulgarelli, G. Piano +67
The study of relativistic particle acceleration is a major topic of high-energy astrophysics. It is well known that massive black holes in active galaxies can release a substantial…
Multiwavelength observations of a TeV-Flare from W Comae
VERITAS collaboration, V. A. Acciari, E. Aliu +167
We report results from an intensive multiwavelength campaign on the intermediate-frequency-peaked BL Lacertae object W Com (z=0.102) during a strong outburst of very high energy ga…
Agile Detection of Delayed Gamma-Ray Emission from the Short Gamma-Ray Burst GRB 090510
A. Giuliani, F. Fuschino, G. Vianello +59
Short gamma-ray bursts (GRBs), typically lasting less than 2 s, are a special class of GRBs of great interest. We report the detection by the AGILE satellite of the short GRB 09051…
AGILE detection of a rapid gamma-ray flare from the blazar PKS 1510-089 during the GASP-WEBT monitoring
F. D'Ammando, G. Pucella, C. M. Raiteri +103
We report the detection by the AGILE satellite of a rapid gamma-ray flare from the powerful gamma-ray quasar PKS 1510-089, during a pointing centered on the Galactic Center region…
Detection of Gamma-ray Emission from the Eta-Carinae Region
M. Tavani, S. Sabatini, E. Pian +63
We present the results of extensive observations by the gamma-ray AGILE satellite of the Galactic region hosting the Carina nebula and the remarkable colliding wind binary Eta Cari…