Related papers: TeV observations of Centaurus A

Observation of TeV gamma-rays from the unidentified source HESS J1841-055 with the ARGO-YBJ experiment

We report the observation of a very high energy \gamma-ray source, whose position is coincident with HESS J1841-055. This source has been observed for 4.5 years by the ARGO-YBJ experiment from November 2007 to July 2012. Its emission is…

High Energy Astrophysical Phenomena · Physics 2013-04-04 YBJ Collaboration , B. Bartoli , P. Bernardini , X. J. Bi , I. Bolognino , P. Branchini , A. Budano , A. K. Calabrese Melcarne , P. Camarri , Z. Cao , R. Cardarelli , S. Catalanotti , C. Cattaneo , S. Z. Chen , T. L. Chen , Y. Chen , P. Creti , S. W. Cui , B. Z. Dai , G. DAli Staiti , A. DAmone , Danzengluobu , I. De Mitri , B. DEttorre Piazzoli , T. Di Girolamo , X. H. Ding , G. Di Sciascio , C. F. Feng , Zhaoyang Feng , Zhenyong Feng , F. Galeazzi , E. Giroletti , Q. B. Gou , Y. Q. Guo , H. H. He , Haibing Hu , Hongbo Hu , Q. Huang , M. Iacovacci , R. Iuppa , I. James , H. Y. Jia , Labaciren , H. J. Li , J. Y. Li , X. X. Li , G. Liguori , C. Liu , C. Q. Liu , J. Liu , M. Y. Liu , H. Lu , L. L. Ma , X. H. Ma , G. Mancarella , S. M. Mari , G. Marsella , D. Martello , S. Mastroianni , P. Montini , C. C. Ning , A. Pagliaro , M. Panareo , B. Panico , L. Perrone , P. Pistilli , F. Ruggieri , P. Salvini , R. Santonico , S. N. Sbano , P. R. Shen , X. D. Sheng , F. Shi , A. Surdo , Y. H. Tan , P. Vallania , S. Vernetto , C. Vigorito , B. Wang , H. Wang , C. Y. Wu , H. R. Wu , B. Xu , L. Xue , Q. Y. Yang , X. C. Yang , Z. G. Yao , A. F. Yuan , M. Zha , H. M. Zhang , Jilong Zhang , Jianli Zhang , L. Zhang , P. Zhang , X. Y. Zhang , Y. Zhang , J. Zhao , Zhaxiciren , Zhaxisangzhu , X. X. Zhou , F. R. Zhu , Q. Q. Zhu , G. Zizzi

TeV Solar Gamma Rays From Cosmic-Ray Interactions

The Sun is a bright source of GeV gamma rays, due to cosmic rays interacting with solar matter and photons. Key aspects of the underlying processes remain mysterious. The emission in the TeV range, for which there are neither observational…

High Energy Astrophysical Phenomena · Physics 2017-08-09 Bei Zhou , Kenny C. Y. Ng , John F. Beacom , Annika H. G. Peter

CANGAROO-III Search for Gamma Rays from Kepler's Supernova Remnant

Kepler's supernova, discovered in October 1604, produced a remnant that has been well studied observationally in the radio, infrared, optical, and X-ray bands, and theoretically. Some models have predicted a TeV gamma-ray flux that is…

Astrophysics · Physics 2009-11-13 R. Enomoto , Y. Higashi , T. Yoshida , T. Tanimori

First HAWC Observations of the Sun Constrain Steady TeV Gamma-Ray Emission

Steady gamma-ray emission up to at least 200 GeV has been detected from the solar disk in the Fermi-LAT data, with the brightest, hardest emission occurring during solar minimum. The likely cause is hadronic cosmic rays undergoing…

High Energy Astrophysical Phenomena · Physics 2018-12-26 A. Albert , R. Alfaro , C. Alvarez , R. Arceo , J. C. Arteaga-Velázquez , D. Avila Rojas , H. A. Ayala Solares , E. Belmont-Moreno , S. Y. BenZvi , C. Brisbois , K. S. Caballero-Mora , T. Capistràn , A. Carramiñana , S. Casanova , M. Castillo , J. Cotzomi , S. Coutiño de León , C. De León , E. De la Fuente , S. Dichiara , B. L. Dingus , M. A. DuVernois , J. C. Díaz-Vélez , K. Engel , O. Enríquez-Rivera , C. Espinoza , H. Fleischhack , N. Fraija , J. A. García-González , F. Garfias , M. M. González , J. A. Goodman , Z. Hampel-Arias , J. P. Harding , S. Hernandez , B. Hona , F. Hueyotl-Zahuantitla , P. Hüntemeyer , A. Iriarte , A. Jardin-Blicq , V. Joshi , S. Kaufmann , H. León Vargas , G. Luis-Raya , J. Lundeen , R. López-Coto , K. Malone , S. S. Marinelli , O. Martinez , I. Martinez-Castellanos , J. Martínez-Castro , P. Miranda-Romagnoli , E. Moreno , M. Mostafá , A. Nayerhoda , L. Nellen , M. Newbold , M. U. Nisa , R. Noriega-Papaqui , J. Pretz , E. G. Pérez-Pérez , Z. Ren , C. D. Rho , C. Rivière , D. Rosa-González , M. Rosenberg , E. Ruiz-Velasco , H. Salazar , F. Salesa Greus , A. Sandoval , M. Schneider , H. Schoorlemmer , M. Seglar Arroyo , G. Sinnis , A. J. Smith , P. Surajbali , I. Taboada , O. Tibolla , K. Tollefson , I. Torres , L. Villaseñor , T. Weisgarber , S. Westerhoff , I. G. Wisher , J. Wood , T. Yapici , A. Zepeda , H. Zhou , J. D. Álvarez , J. F. Beacom , R. K. Leane , T. Linden , K. C. Y. Ng , A. H. G. Peter , B. Zhou

Search for TeV Gamma-Ray Emission from Point-like Sources in the Inner Galactic Plane with a Partial Configuration of the HAWC Observatory

A survey of the inner Galaxy region of Galactic longitude l in [+15, +50] degree and latitude b in [-4,+4] degree is performed using one-third of the High Altitude Water Cherenkov (HAWC) Observatory operated during its construction phase.…

High Energy Astrophysical Phenomena · Physics 2016-01-27 A. U. Abeysekara , R. Alfaro , C. Alvarez , J. D. Álvarez , R. Arceo , J. C. Arteaga-Velázquez , H. A. Ayala Solares , A. S. Barber , B. M. Baughman , N. Bautista-Elivar , A. D. Becerril Reyes , E. Belmont , S. Y. BenZvi , A. Bernal , J. Braun , K. S. Caballero-Mora , T. Capistrán , A. Carramiñana , S. Casanova , M. Castillo , U. Cotti , J. Cotzomi , S. Coutiño de León , E. de la Fuente , C. De León , T. DeYoung , B. L. Dingus , M. A. DuVernois , R. W. Ellsworth , O. Enriquez-Rivera , D. W. Fiorino , N. Fraija , F. Garfias , M. M. González , J. A. Goodman , M. Gussert , Z. Hampel-Arias , J. P. Harding , S. Hernandez , P. Hüntemeyer , C. M. Hui , A. Imran , A. Iriarte , P. Karn , D. Kieda , A. Lara , R. J. Lauer , W. H. Lee , D. Lennarz , H. León Vargas , J. T. Linnemann , M. Longo , G. Luis Raya , K. Malone , A. Marinelli , S. S. Marinelli , H. Martinez , O. Martinez , J. Martínez-Castro , J. A. J. Matthews , P. Miranda-Romagnoli , E. Moreno , M. Mostafá , L. Nellen , M. Newbold , R. Noriega-Papaqui , B. Patricelli , R. Pelayo , E. G. Pérez-Pérez , J. Pretz , Z. Ren , C. Rivière , D. Rosa-González , H. Salazar , F. Salesa Greus , A. Sandoval , M. Schneider , G. Sinnis , A. J. Smith , K. Sparks Woodle , R. W. Springer , I. Taboada , O. Tibolla , K. Tollefson , I. Torres , T. N. Ukwatta , L. Villaseñor , K. Vrabel , T. Weisgarber , S. Westerhoff , I. G. Wisher , J. Wood , T. Yapici , G. B. Yodh , P. W. Younk , D. Zaborov , A. Zepeda , H. Zhou

A TeV source in the 3C 66A/B region

The MAGIC telescope observed the region around the distant blazar 3C 66A for 54.2 hr in 2007 August-December. The observations resulted in the discovery of a gamma-ray source centered at celestial coordinates R.A. = 2h23m12s and decl.=…

High Energy Astrophysical Phenomena · Physics 2009-07-07 Manel Errando , Elina Lindfors , Daniel Mazin , Elisa Prandini , Fabrizio Tavecchio

MAGIC Upper Limits for two Milagro-detected, Bright Fermi Sources in the Region of SNR G65.1+0.6

We report on the observation of the region around supernova remnant G65.1+0.6 with the stand-alone MAGIC-I telescope. This region hosts the two bright GeV gamma-ray sources 1FGL J1954.3+2836 and 1FGL J1958.6+2845. They are identified as GeV…

High Energy Astrophysical Phenomena · Physics 2011-04-05 J. Aleksić , L. A. Antonelli , P. Antoranz , M. Backes , J. A. Barrio , D. Bastieri , J. Becerra González , W. Bednarek , A. Berdyugin , K. Berger , E. Bernardini , A. Biland , O. Blanch , R. K. Bock , A. Boller , G. Bonnoli , P. Bordas , D. Borla Tridon , V. Bosch-Ramon , D. Bose , I. Braun , T. Bretz , M. Camara , E. Carmona , A. Carosi , P. Colin , J. L. Contreras , J. Cortina , S. Covino , F. Dazzi , A. De Angelis , E. De Cea del Pozo , B. De Lotto , M. De Maria , F. De Sabata , C. DelgadoMendez , A. Diago Ortega , M. Doert , A. Domínguez , D. Dominis Prester , D. Dorner , M. Doro , D. Elsaesser , M. Errando , D. Ferenc , M. V. Fonseca , L. Font , R. J. García López , M. Garczarczyk , M. Gaug , G. Giavitto , N. Godinović , D. Hadasch , A. Herrero , D. Hildebrand , D. Höhne-Mönch , J. Hose , D. Hrupec , T. Jogler , S. Klepser , T. Krähenbühl , D. Kranich , J. Krause , A. La Barbera , E. Leonardo , E. Lindfors , S. Lombardi , F. Longo , M. López , E. Lorenz , P. Majumdar , G. Maneva , N. Mankuzhiyil , K. Mannheim , L. Maraschi , M. Mariotti , M. Martínez , D. Mazin , M. Meucci , J. M. Miranda , R. Mirzoyan , H. Miyamoto , J. Moldón , A. Moralejo , D. Nieto , K. Nilsson , R. Orito , I. Oya , R. Paoletti , J. M. Paredes , S. Partini , M. Pasanen , F. Pauss , R. G. Pegna , M. A. Perez-Torres , M. Persic , L. Peruzzo , J. Pochon , F. Prada , P. G. Prada Moroni , E. Prandini , N. Puchades , I. Puljak , I. Reichardt , R. Reinthal , W. Rhode , M. Ribó , J. Rico , M. Rissi , S. Rügamer , A. Saggion , K. Saito , T. Y. Saito , M. Salvati , M. Sánchez-Conde , K. Satalecka , V. Scalzotto , V. Scapin , C. Schultz , T. Schweizer , M. Shayduk , S. N. Shore , A. Sierpowska-Bartosik , A. Sillanpää , J. Sitarek , D. Sobczynska , F. Spanier , S. Spiro , A. Stamerra , B. Steinke , J. Storz , N. Strah , J. C. Struebig , T. Suric , L. Takalo , F. Tavecchio , P. Temnikov , T. Terzić , D. Tescaro , M. Teshima , D. F. Torres , H. Vankov , R. M. Wagner , Q. Weitzel , V. Zabalza , F. Zandanel , R. Zanin

Very-high energy observations of the Galactic center region by VERITAS in 2010-2012

The Galactic center is an interesting region for high-energy (0.1-100 GeV) and very-high-energy (E > 100 GeV) gamma-ray observations. Potential sources of GeV/TeV gamma-ray emission have been suggested, e.g., the accretion of matter onto…

High Energy Astrophysical Phenomena · Physics 2015-05-27 The VERITAS Collaboration

TeV gamma rays from the Galactic Center

The recent detection of TeV gamma-radiation from the direction of the Galactic Center within several arc-minutes around Sgr A* is the first model-independent evidence of existence of high energy particle accelerator(s) in the central 10 pc…

Astrophysics · Physics 2007-05-23 F. Aharonian , A. Neronov

Flux upper limits of diffuse TeV gamma rays from the Galactic plane using the effective area of the Tibet-II and -III arrays

We obtained new upper limits on the diffuse gamma rays from the inner Galactic (IG) and outer Galactic (OG) planes in 3.10 TeV region, using the Tibet air shower data and new Monte Carlo simulation results. A difference of the effective…

Astrophysics · Physics 2007-05-23 The Tibet AS Gamma Collaboration , M. Amenomori

TeV gamma-ray survey of the Northern sky using the ARGO-YBJ detector

The ARGO-YBJ detector is an extensive air shower array that has been used to monitor the northern $\gamma$-ray sky at energies above 0.3 TeV from 2007 November to 2013 January. In this paper, we present the results of a sky survey in the…

High Energy Astrophysical Phenomena · Physics 2013-11-26 YBJ Collaboration , B. Bartoli , P. Bernardini , X. J. Bi , I. Bolognino , P. Branchini , A. Budano , A. K. Calabrese Melcarne , P. Camarri , Z. Cao , R. Cardarelli , S. Catalanotti , S. Z. Chen , T. L. Chen , Y. Chen , P. Creti , S. W. Cui , B. Z. Dai , A. DAmone , Danzengluobu , I. De Mitri , B. DEttorre Piazzoli , T. Di Girolamo , X. H. Ding , G. Di Sciascio , C. F. Feng , Zhaoyang Feng , Zhenyong Feng , Q. B. Gou , Y. Q. Guo , H. H. He , Haibing Hu , Hongbo Hu , Q. Huang , M. Iacovacci , R. Iuppa , H. Y. Jia , Labaciren , H. J. Li , J. Y. Li , X. X. Li , G. Liguori , C. Liu , C. Q. Liu , J. Liu , M. Y. Liu , H. Lu , L. L. Ma , X. H. Ma , G. Mancarella , S. M. Mari , G. Marsella , D. Martello , S. Mastroianni , P. Montini , C. C. Ning , M. Panareo , B. Panico , L. Perrone , P. Pistilli , F. Ruggieri , P. Salvini , R. Santonico , S. N. Sbano , P. R. Shen , X. D. Sheng , F. Shi , A. Surdo , Y. H. Tan , P. Vallania , S. Vernetto , C. Vigorito , B. Wang , H. Wang , C. Y. Wu , H. R. Wu , B. Xu , L. Xue , Q. Y. Yang , X. C. Yang , Z. G. Yao , A. F. Yuan , M. Zha , H. M. Zhang , Jilong Zhang , Jianli Zhang , L. Zhang , P. Zhang , X. Y. Zhang , Y. Zhang , J. Zhao , Zhaxiciren , Zhaxisangzhu , X. X. Zhou , F. R. Zhu , Q. Q. Zhu , G. Zizzi

Observation of gamma-rays greater than 10 TeV from Markarian 421

We have observed Markarian 421 in January and March 2001 with the CANGAROO-II imaging Cherenkov telescope during an extraordinarily high state at TeV energies. From 14 hours observations at very large zenith angles, $\sim70^\circ$, a signal…

Astrophysics · Physics 2009-11-07 K. Okumura , A. Asahara , G. V. Bicknell , P. G. Edwards , R. Enomoto , S. Gunji , S. Hara , T. Hara , S. Hayashi , C. Itoh , S. Kabuki , F. Kajino , H. Katagiri , J. Kataoka , A. Kawachi , T. Kifune , H. Kubo , J. Kushida , S. Maeda , A. Maeshiro , Y. Matsubara , Y. Mizumoto , M. Mori , M. Moriya , H. Muraishi , Y. Muraki , T. Naito , T. Nakase , K. Nishijima , M. Ohishi , J. R. Patterson , K. Sakurazawa , R. Suzuki , D. L. Swaby , K. Takano , T. Takano , T. Tanimori , F. Tokanai , K. Tsuchiya , H. Tsunoo , K. Uruma , A. Watanabe , S. Yanagita , T. Yoshida , T. Yoshikoshi

Deep Observation of the Giant Radio Lobes of Centaurus A with the Fermi Large Area Telescope

The detection of high energy (HE) {\gamma}-ray emission up to about 3 GeV from the giant lobes of the radio galaxy Centaurus A has been recently reported by the Fermi-LAT Collaboration based on ten months of all-sky survey observations. A…

High Energy Astrophysical Phenomena · Physics 2015-03-19 Rui-zhi Yang , Narek Sahakyan , Emma de Ona Wilhelmi , Felix Aharonian , Frank Rieger

An upper limit on the cosmic-ray luminosity of individual sources from gamma-ray observations

Different types of extragalactic objects are known to produce TeV gamma-rays. Some of these objects are the most probable candidates to accelerate cosmic rays up to 10^20 eV. It is very well known that gamma-rays can be produced as a result…

High Energy Astrophysical Phenomena · Physics 2015-06-17 A. D. Supanitsky , V. de Souza

Very high-energy gamma-ray signature of ultrahigh-energy cosmic-ray acceleration in Centaurus A

The association of at least a dozen ultrahigh-energy cosmic-ray (UHECR) events with energy $\gtrsim 55$ EeV detected by the Pierre Auger Observatory (PAO) from the direction of Centaurus-A, the nearest radio galaxy, supports the scenario of…

High Energy Astrophysical Phenomena · Physics 2018-05-02 Jagdish C. Joshi , Luis Salvador Miranda , Soebur Razzaque , Lili Yang

A Search for TeV Gamma-Ray Burst Emission with the Milagro Observatory

The Milagro telescope monitors the northern sky for 100 GeV - 100 TeV transient emission through continuous very high energy wide-field observations. The large effective area and low energy threshold of Milagro allow it to detect very high…

Astrophysics · Physics 2009-09-29 Miguel F. Morales

Diffuse Gamma-Ray Emission from Starburst Galaxies and M31

We present a search for high energy gamma-ray emission from 9 nearby starburst galaxies and M31 with the EGRET instrument aboard CGRO. Though the diffuse gamma-ray emission from starburst galaxies was suspected to be detectable, we find no…

Astrophysics · Physics 2009-10-31 Jan J. Blom , Timothy A. D. Paglione , Alberto Carraminana

Discovery of GeV Emission from the Circinus galaxy with the Fermi-LAT

We report the discovery of gamma-ray emission from the Circinus galaxy using the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope. Circinus is a nearby (~4 Mpc) starburst with a heavily obscured Seyfert-type active…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Masaaki Hayashida , Lukasz Stawarz , Chi C. Cheung , Keith Bechtol , Greg M. Madejski , Marco Ajello , Francesco Massaro , Igor V. Moskalenko , Andrew Strong , Luigi Tibaldo

Search for point sources and diffuse emission from the Galactic plane with the HEGRA-IACT-system

The HEGRA-IACT-system with a FoV of ~1.5 deg radius has been used for surveying one quater of the Galactic disc in respect to point sources, moderately extended sources and for diffuse emission in the energy range above 1 TeV. In total 140…

Astrophysics · Physics 2007-05-23 H. Lampeitl , K. Bernloehr , A. Daum , W. Hofmann , A. Konopelko , G. Puehlhofer , HEGRA-Collaboration

New constraints on the cosmic mid-infrared background using TeV gamma-ray astronomy

Very high energy gamma-ray data obtained by CAT and HEGRA from active galactic nucleus Mkn 501 are used to constrain the cosmic Mid-Infrared background. While the entire infrared and submillimeter spectrum shape based on models has been…

Astrophysics · Physics 2011-05-23 C. Renault , A. Barrau , G. Lagache , J. -L. Puget