Related papers: Gamma-ray blazars: the view from AGILE

Not only once: the amazing gamma-ray activity of the blazar PKS 1510-089

PKS 1510-089 is a powerful Flat Spectrum Radio Quasar at z=0.361 with radiative output dominated by the gamma-ray emission. In the last two years PKS 1510-089 showed high variability over all the electromagnetic spectrum and in particular…

High Energy Astrophysical Phenomena · Physics 2009-10-07 F. D'Ammando , C. M. Raiteri , M. Villata , P. Romano , S. Covino , H. Krimm , M. Tavani , the AGILE , GASP-WEBT Collaborations

Multiwavelength observations of 3C 454.3 II. The AGILE 2007 December campaign

We report on the second AGILE multiwavelength campaign of the blazar 3C 454.3 during the first half of December 2007. This campaign involved AGILE, Spitzer, Swift,Suzaku,the WEBT consortium,the REM and MITSuME telescopes,offering a broad…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 I. Donnarumma , G. Pucella , V. Vittorini , F. D'Ammando , S. Vercellone , C. M. Raiteri , M. Villata , M. Perri , W. P. Chen , R. L. Smart , J. Kataoka , N. Kawai , Y. Mori , G. Tosti , D. Impiombato , T. Takahashi , R. Sato , M. Tavani , A. Bulgarelli , A. W. Chen , A. Giuliani , F. Longo , L. Pacciani , A. Argan , G. Barbiellini , F. Boffelli , P. Caraveo , P. W. Cattaneo , V. Cocco , T. Contessi , E. Costa , E. Del Monte , G. De Paris , G. Di Cocco , Y. Evangelista , M. Feroci , A. Ferrari , M. Fiorini , T. Froysland , M. Frutti , F. Fuschino , M. Galli , F. Gianotti , C. Labanti , I. Lapshov , F. Lazzarotto , P. Lipari , M. Marisaldi , M. Mastropietro , S. Mereghetti , E. Morelli , E. Moretti , A. Morselli , A. Pellizzoni , F. Perotti , P. Picozza , M. Pilia , G. Porrovecchio , M. Prest , M. Rapisarda , A. Rappoldi , A. Rubini , S. Sabatini , E. Scalise , P. Soffitta , E. Striani , M. Trifoglio , A. Trois , E. Vallazza , A. Zambra , D. Zanello , C. Pittori , P. Santolamazza , F. Verrecchia , P. Giommi , L. A. Antonelli , S. Colafrancesco , L. Salotti

Long-term gamma-ray and multiwavelength observations of 3C 454.3 (a.k.a. the Crazy Diamond)

During the period July 2007 - January 2009, the AGILE satellite, together with several other space- and ground-based observatories monitored the activity of the flat-spectrum radio quasar 3C 454.3, yielding the longest multiwavelength…

High Energy Astrophysical Phenomena · Physics 2019-08-14 S. Vercellone

An updated list of AGILE bright gamma-ray sources and their variability in pointing mode

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), obtained using the complete set of AGILE observations in…

High Energy Astrophysical Phenomena · Physics 2013-10-25 F. Verrecchia , C. Pittori , A. W. Chen , A. Bulgarelli , M. Tavani , F. Lucarelli , P. Giommi , S. Vercellone , A. Pellizzoni , A. Giuliani , F. Longo , G. Barbiellini , M. Trifoglio , F. Gianotti , A. Argan , L. A. Antonelli , P. Caraveo , M. Cardillo , P. W. Cattaneo , V. Cocco , S. Colafrancesco , T. Contessi , E. Costa , E. Del Monte , G. De Paris , G. Di Cocco , G. Di Persio , I. Donnarumma , Y. Evangelista , G. Fanari , M. Feroci , A. Ferrari , M. Fiorini , F. Fornari , F. Fuschino , T. Froysland , M. Frutti , M. Galli , C. Labanti , I. Lapshov , F. Lazzarotto , F. Liello , P. Lipari , E. Mattaini , M. Marisaldi , M. Mastropietro , A. Mauri , F. Mauri , S. Mereghetti , E. Morelli , E. Moretti , A. Morselli , L. Pacciani , F. Perotti , G. Piano , P. Picozza , M. Pilia , C. Pontoni , G. Porrovecchio , M. Prest , R. Primavera , G. Pucella , M. Rapisarda , A. Rappoldi , E. Rossi , A. Rubini , S. Sabatini , P. Santolamazza , P. Soffitta , S. Stellato , E. Striani , F. Tamburelli , A. Traci , A. Trois , E. Vallazza , V. Vittorini , D. Zanello , L. Salotti , G. Valentini

Multiwavelength observations of 3C 454.3. I. The AGILE 2007 November campaign on the "Crazy Diamond"

[Abridged] We report on a multiwavelength observation of the blazar 3C 454.3 (which we dubbed "crazy diamond") carried out on November 2007 by means of the astrophysical satellites AGILE, INTEGRAL, Swift, the WEBT Consortium, and the…

Astrophysics · Physics 2008-12-18 S. Vercellone , A. W. Chen , V. Vittorini , A. Giuliani , F. D'Ammando , M. Tavani , I. Donnarumma , G. Pucella , C. M. Raiteri , M. Villata , W. P. Chen , G. Tosti , D. Impiombato , P. Romano , A. Belfiore , A. De Luca , G. Novara , F. Senziani , A. Bazzano , M. T. Fiocchi , P. Ubertini , A. Ferrari , A. Argan , G. Barbiellini , F. Boffelli , A. Bulgarelli , P. Caraveo , P. W. Cattaneo , V. Cocco , E. Costa , E. Del Monte , G. De Paris , G. Di Cocco , Y. Evangelista , M. Feroci , M. Fiorini , F. Fornari , T. Froysland , F. Fuschino , M. Galli , F. Gianotti , C. Labanti , I. Lapshov , F. Lazzarotto , P. Lipari , F. Longo , M. Marisaldi , S. Mereghetti , A. Morselli , A. Pellizzoni , L. Pacciani , F. Perotti , P. Picozza , M. Prest , M. Rapisarda , A. Rappoldi , P. Soffitta , M. Trifoglio , A. Trois , E. Vallazza , A. Zambra , D. Zanello , C. Pittori , F. Verrecchia , P. Santolamazza , B. Preger , D. Gasparrini , S. Cutini , P. Giommi , S. Colafrancesco , L. Salotti

Prospects for High Energy Studies of Pulsars with the AGILE Gamma-Ray Telescope

AGILE is a small gamma-ray astronomy satellite, with good spatial resolution, excellent timing capabilities and an unprecedented large field of view (~1/5 of the sky). It will be the next mission dedicated to high energy astrophysics in the…

Astrophysics · Physics 2007-05-23 A. Pellizzoni , A. Chen , M. Conti , A. Giuliani , S. Mereghetti , M. Tavani , S. Vercellone

On the July 2007 flare of the blazar 3C 454.3

In July 2007, the blazar 3C 454.3 underwent a flare in the optical, reaching R~13 on July 19. Then the optical flux decreased by one magnitude, being R~14 when the source was detected by the gamma-ray satellite AGILE, that observed the…

Astrophysics · Physics 2009-11-13 G. Ghisellini , L. Foschini , F. Tavecchio , E. Pian

Observations of Gamma Ray Bursts with AGILE

The AGILE satellite, in orbit since 2007, localized up to October 2009 about 1 Gamma Ray Burst (GRB) per month with the hard X-ray imager SuperAGILE (18 - 60 keV) (with a rate reduced by a factor 2-3 in spinning mode) and is detecting…

High Energy Astrophysical Phenomena · Physics 2019-08-13 F. Longo , G. Barbiellini , E. Del Monte , M. Marisaldi , F. Fuschino , A. Giuliani

Observation of GRBs with AGILE

Since its early phases of operation, the AGILE satellite is observing Gamma Ray Bursts (GRBs) over an energy range potentially spanning six orders of magnitude. In the hard X-ray band the SuperAGILE imager provides localization of about one…

High Energy Astrophysical Phenomena · Physics 2009-06-09 M. Marisaldi , G. Barbiellini , E. Costa , S. Cutini , E. Del Monte , I. Donnarumma , Y. Evangelista , M. Feroci , F. Fuschino , M. Galli , A. Giuliani , C. Labanti , I. Lapshov , F. Lazzarotto , P. Lipari , F. Longo , S. Mereghetti , E. Moretti , L. Pacciani , M. Rapisarda , P. Soffitta , M. Tavani , M. Trifoglio , S. Vercellone

High-Resolution Timing Observations of Spin-Powered Pulsars with the AGILE Gamma-Ray Telescope

AGILE is a small gamma-ray astronomy satellite mission of the Italian Space Agency dedicated to high-energy astrophysics launched in 2007 April. Its 1 microsecond absolute time tagging capability coupled with a good sensitivity in the 30…

Astrophysics · Physics 2011-02-11 A. Pellizzoni , M. Pilia , A. Possenti , F. Fornari , P. Caraveo , E. Del Monte , S. Mereghetti , M. Tavani , A. Argan , A. Trois , M. Burgay , A. Chen , I. Cognard , E. Costa , N. D'Amico , P. Esposito , Y. Evangelista , M. Feroci , F. Fuschino , A. Giuliani , J. Halpern , G. Hobbs , A. Hotan , S. Johnston , M. Kramer , F. Longo , R. N. Manchester , M. Marisaldi , J. Palfreyman , P. Weltevrede , G. Barbiellini , F. Boffelli , A. Bulgarelli , P. W. Cattaneo , V. Cocco , F. D'Ammando , G. De Paris , G. Di Cocco , I. Donnarumma , M. Fiorini , T. Froysland , M. Galli , F. Gianotti , A. Harding , C. Labanti , I. Lapshov , F. Lazzarotto , P. Lipari , F. Mauri , A. Morselli , L. Pacciani , F. Perotti , P. Picozza , M. Prest , G. Pucella , M. Rapisarda , A. Rappoldi , P. Soffitta , M. Trifoglio , E. Vallazza , S. Vercellone , V. Vittorini , A. Zambra , D. Zanello , C. Pittori , F. Verrecchia , B. Preger , P. Santolamazza , P. Giommi , L. Salotti

Discovery of new gamma-ray pulsars with AGILE

Using gamma-ray data collected by the Astrorivelatore Gamma ad Immagini LEggero (AGILE) satellite over a period of almost one year (from 2007 July to 2008 June), we searched for pulsed signals from 35 potentially interesting radio pulsars,…

High Energy Astrophysical Phenomena · Physics 2009-03-25 A. Pellizzoni , M. Pilia , A. Possenti , A. Chen , A. Giuliani , A. Trois , P. Caraveo , E. Del Monte , F. Fornari , F. Fuschino , S. Mereghetti , M. Tavani , A. Argan , M. Burgay , I. Cognard , A. Corongiu , E. Costa , N. D'Amico , A. De Luca , P. Esposito , Y. Evangelista , M. Feroci , S. Johnston , M. Kramer , F. Longo , M. Marisaldi , G. Theureau , P. Weltevrede , G. Barbiellini , F. Boffelli , A. Bulgarelli , P. W. Cattaneo , V. Cocco , F. D'Ammando , G. De Paris , G. Di Cocco , I. Donnarumma , M. Fiorini , T. Froysland , M. Galli , F. Gianotti , C. Labanti , I. Lapshov , F. Lazzarotto , P. Lipari , T. Mineo , A. Morselli , L. Pacciani , F. Perotti , G. Piano , P. Picozza , M. Prest , G. Pucella , M. Rapisarda , A. Rappoldi , S. Sabatini , P. Soffitta , M. Trifoglio , E. Vallazza , S. Vercellone , V. Vittorini , A. Zambra , D. Zanello , C. Pittori , F. Verrecchia , B. Preger , P. Santolamazza , P. Giommi , L. Salotti , G. F. Bignami

AGILE Observations of Terrestrial Gamma-Ray Flashes

The AGILE satellite, operating since mid 2007 and primarily devoted to high-energy astrophysics, is one of the only three currently operating space instruments capable of detecting Terrestrial Gamma-Ray Flashes (TGFs), together with RHESSI…

High Energy Astrophysical Phenomena · Physics 2022-03-02 M. Marisaldi , F. Fuschino , C. Labanti , A. Bulgarelli , F. Gianotti , M. Trifoglio , M. Tavani , A. Argan , E. Del Monte , F. Longo , G. Barbiellini , A. Giuliani , A. Trois

High-energy gamma-ray activity from V404 Cygni detected by AGILE during the 2015 June outburst

The AGILE satellite detected transient high-energy gamma-ray emission from the X-ray binary V404 Cygni, during the June 2015 outburst observed in radio, optical, X-ray and soft gamma-ray frequencies. The activity was observed by AGILE in…

High Energy Astrophysical Phenomena · Physics 2017-04-26 G. Piano , P. Munar-Adrover , F. Verrecchia , M. Tavani , S. A. Trushkin

High energy variability of 3C 273 during the AGILE multiwavelength campaign of December 2007 - January 2008

We report the results of a 3-weeks multi-wavelength campaign on the flat spectrum radio quasar 3C 273 carried out with the AGILE gamma-ray mission, covering the 30 MeV -50 GeV and 18-60 keV, the REM observatory (covering the near-IR and…

Astrophysics · Physics 2011-08-31 L. Pacciani , I. Donnarumma , V. Vittorini , F. D'Ammando , M. T. Fiocchi , D. Impiombato , G. Stratta , F. Verrecchia , A. Bulgarelli , A. W. Chen , A. Giuliani , F. Longo , G. Pucella , S. Vercellone , M. Tavani , A. Argan , G. Barbiellini , F. Boffelli , P. A. Caraveo , P. W. Cattaneo , V. Cocco , E. Costa , E. Del Monte , G. Di Cocco , Y. Evangelista , M. Feroci , T. Froysland , F. Fuschino , M. Galli , F. Gianotti , C. Labanti , I. Lapshov , F. Lazzarotto , P. Lipari , M. Marisaldi , S. Mereghetti , A. Morselli , A. Pellizzoni , F. Perotti , P. Picozza , M. Prest , M. Rapisarda , P. Soffitta , M. Trifoglio , G. Tosti , A. Trois , E. Vallazza , D. Zanello , L. A. Antonelli , S. Colafrancesco , S. Cutini , D. Gasparrini , P. Giommi , C. Pittori , L. Salotti

Blazar Duty-Cycle at gamma-ray Frequecies: Constraints from Extragalactic Background Radiation and Prospects for AGILE and GLAST

We take into account the constraints from the observed extragalactic gamma-ray background to estimate the maximum duty cycle allowed for a selected sample of WMAP Blazars, in order to be detectable by AGILE and GLAST gamma-ray experiments.…

Astrophysics · Physics 2009-06-23 Carlotta Pittori , Elisabetta Cavazzuti , Sergio Colafrancesco , Paolo Giommi

AGILE: a Gamma-Ray Mission for a Light Imaging Detector

AGILE is an innovative, cost-effective gamma-ray mission proposed to the ASI Program of Small Scientific Missions. It is planned to detect gamma-rays in the 30 MeV - 50 GeV energy band and operate as an {\bf Observatory} open to the…

Astrophysics · Physics 2016-08-30 M. Tavani , G. Barbiellini , P. Caraveo , S. Di Pippo , S. Mereghetti , A , Morselli , A. Pellizzoni , A. Perrino , P. Picozza , P. Schiavon , S. Severoni , F. Tavecchio , A. Vacchi , S. Vercellone

Multiwavelength observations of 3C 454.3. III. Eighteen months of AGILE monitoring of the "Crazy Diamond"

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 which took place on May-June 2008, July-August 2008, and October…

High Energy Astrophysical Phenomena · Physics 2015-05-18 S. Vercellone , F. D'Ammando , V. Vittorini , I. Donnarumma , G. Pucella , M. Tavani , A. Ferrari , C. M. Raiteri , M. Villata , P. Romano , H. Krimm , A. Tiengo , A. W. Chen , G. Giovannini , T. Venturi , M. Giroletti , Y. Y. Kovalev , K. Sokolovsky , A. B. Pushkarev , M. L. Lister , A. Argan , G. Barbiellini , A. Bulgarelli , P. Caraveo , P. W. Cattaneo , V. Cocco , E. Costa , E. Del Monte , G. De Paris , G. Di Cocco , Y. Evangelista , M. Feroci , M. Fiorini , F. Fornari , T. Froysland , F. Fuschino , M. Galli , F. Gianotti , C. Labanti , I. Lapshov , F. Lazzarotto , P. Lipari , F. Longo , A. Giuliani , M. Marisaldi , S. Mereghetti , A. Morselli , A. Pellizzoni , L. Pacciani , F. Perotti , G. Piano , P. Picozza , M. Pilia , M. Prest , M. Rapisarda , A. Rappoldi , S. Sabatini , P. Soffitta , E. Striani , M. Trifoglio , A. Trois , E. Vallazza , A. Zambra , D. Zanello , C. Pittori , F. Verrecchia , P. Santolamazza , P. Giommi , S. Colafrancesco , L. Salotti , I. Agudo , H. D. Aller , M. F. Aller , A. A. Arkharov , U. Bach , R. Bachev , P. Beltrame , E. Benitez , M. Boettcher , C. S. Buemi , P. Calcidese , D. Capezzali , D. Carosati , W. P. Chen , D. Da Rio , A. Di Paola , M. Dolci , D. Dultzin , E. Forne , J. L. Gomez , M. A. Gurwell , V. A. Hagen-Thorn , A. Halkola , J. Heidt , D. Hiriart , T. Hovatta , H. Y. Hsiao , S. G. Jorstad , G. Kimeridze , T. S. Konstantinova , E. N. Kopatskaya , E. Koptelova , O. Kurtanidze , A. Lahteenmaki , V. M. Larionov , P. Leto , R. Ligustri , E. Lindfors , J. M. Lopez , A. P. Marscher , R. Mujica , M. Nikolashvili , K. Nilsson

The Agile Alert System For Gamma-Ray Transients

In recent years, a new generation of space missions offered great opportunities of discovery in high-energy astrophysics. In this article we focus on the scientific operations of the Gamma-Ray Imaging Detector (GRID) onboard the AGILE space…

Instrumentation and Methods for Astrophysics · Physics 2014-01-16 A. Bulgarelli , M. Trifoglio , F. Gianotti , M. Tavani , N. Parmiggiani , V. Fioretti , A. W. Chen , S. Vercellone , C. Pittori , F. Verrecchia , F. Lucarelli , P. Santolamazza , G. Fanari , P. Giommi , D. Beneventano , A. Argan , A. Trois , E. Scalise , F. Longo , A. Pellizzoni , G. Pucella , S. Colafrancesco , V. Conforti , P. Tempesta , M. Cerone , P. Sabatini , G. Annoni , G. Valentini , L. Salotti

The observation of Gamma Ray Bursts and Terrestrial Gamma-ray Flashes with AGILE

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 the Mini-Calorimeter. Up to now, three firm GRB detections…

High Energy Astrophysical Phenomena · Physics 2015-06-03 E. Del Monte , G. Barbiellini , F. Fuschino , A. Giuliani , F. Longo , M. Marisaldi , S. Mereghetti , E. Moretti , M. Trifoglio , G. Vianello , E. Costa , I. Donnarumma , Y. Evangelista , M. Feroci , M. Galli , I. Lapshov , F. Lazzarotto , P. Lipari , L. Pacciani , M. Rapisarda , P. Soffitta , M. Tavani , S. Vercellone , S. Cutini , F. Boffelli , A. Bulgarelli , P. Caraveo , P. W. Cattaneo , A. Chen , G. Di Cocco , F. Gianotti , C. Labanti , A. Morselli , A. Pellizzoni , F. Perotti , G. Piano , P. Picozza , M. Pilia , M. Prest , G. Pucella , A. Rappoldi , S. Sabatini , E. Striani , A. Trois , E. Vallazza , V. Vittorini , L. A. Antonelli , C. Pittori , B. Preger , P. Santolamazza , F. Verrecchia , P. Giommi , L. Salotti

Gamma-Ray Pulsar Studies with GLAST

Some pulsars have their maximum observable energy output in the gamma-ray band, offering the possibility of using these high-energy photons as probes of the particle acceleration and interaction processes in pulsar magnetospheres. After an…

Astrophysics · Physics 2009-06-23 D. J. Thompson