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The effective observation time of Imaging Air Cherenkov Telescopes (IACTs) plays an important role in the detection of gamma-ray sources, especially when the expected flux is low. This time is strongly limited by the atmospheric conditions.…

Instrumentation and Methods for Astrophysics · Physics 2020-09-29 Dorota Sobczyńska , Katarzyna Adamczyk , Julian Sitarek , Michal Szanecki

The Cherenkov Telescope Array (CTA) is an international initiative to build the next generation ground-based very-high-energy gamma-ray observatory. Full sky coverage will be assured by two arrays, one located on each of the northern and…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Maria Concetta Maccarone , Dan Parsons , Markus Gaug , Raquel de los Reyes

Cosmic rays up to at least PeV energies are usually described in the framework of an elementary scenario that involves acceleration by objects that are located in the disk of the Milky Way, such as supernova remnants or massive star-forming…

High Energy Astrophysical Phenomena · Physics 2019-08-14 L. Tibaldo , S. W. Digel

At very high energies (VHE), the emission of $\gamma$ rays is dominated by discrete sources. Due to the limited resolution and sensitivity of current-generation instruments, only a small fraction of the total Galactic population of VHE…

High Energy Astrophysical Phenomena · Physics 2021-10-19 Constantin Steppa , Kathrin Egberts

The Cherenkov Telescope Array (CTA) is the next generation of ground-based very high energy gamma-ray instruments and is planned to be built on two sites (one in each hemisphere) in the coming years, with full array operation foreseen to…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Jan Ebr , Petr Janecek , Michael Prouza , Jiri Blazek

The Cherenkov Telescope Array (CTA) will perform a survey of the whole Galactic disk with unprecedented sensitivity at energies up to 300 TeV. One of the key science projects of the CTA consortium is the discovery of Galactic PeVatrons…

High Energy Astrophysical Phenomena · Physics 2017-09-19 C. Trichard

The High-Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory is designed to record air showers produced by cosmic rays and gamma rays between 100 GeV and 100 TeV. Because of its large field of view and high livetime, HAWC is well-suited…

High Energy Astrophysical Phenomena · Physics 2013-10-02 HAWC Collaboration , 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 , E. Belmont , S. Y. BenZvi , D. Berley , M. Bonilla Rosales , J. Braun , R. A. Caballero-Lopez , K. S. Caballero-Mora , A. Carramiñana , M. Castillo , U. Cotti , J. Cotzomi , E. de la Fuente , C. De León , T. DeYoung , R. Diaz Hernandez , J. C. Díaz-Vélez , B. L. Dingus , M. A. DuVernois , R. W. Ellsworth , A. Fernandez , D. W. Fiorino , N. Fraija , A. Galindo , F. Garfias , L. X. González , M. M. González , J. A. Goodman , V. Grabski , M. Gussert , Z. Hampel-Arias , C. M. Hui , P. Hüntemeyer , A. Imran , A. Iriarte , P. Karn , D. Kieda , G. J. Kunde , A. Lara , R. J. Lauer , W. H. Lee , D. Lennarz , H. León Vargas , E. C. Linares , J. T. Linnemann , M. Longo , R. Luna-GarcIa , A. Marinelli , H. Martinez , O. Martinez , J. Martínez-Castro , J. A. J. Matthews , P. Miranda-Romagnoli , E. Moreno , M. Mostafá , J. Nava , L. Nellen , M. Newbold , R. Noriega-Papaqui , T. Oceguera-Becerra , B. Patricelli , R. Pelayo , E. G. Pérez-Pérez , J. Pretz , C. Rivière , D. Rosa-González , H. Salazar , F. Salesa , F. E. Sanchez , A. Sandoval , E. Santos , M. Schneider , S. Silich , G. Sinnis , A. J. Smith , K. Sparks , R. W. Springer , I. Taboada , P. A. Toale , K. Tollefson , I. Torres , T. N. Ukwatta , L. Villaseñor , T. Weisgarber , S. Westerhoff , I. G. Wisher , J. Wood , G. B. Yodh , P. W. Younk , D. Zaborov , A. Zepeda , H. Zhou

The Cherenkov Telescope Array (CTA) is a project for the construction of a next generation VHE gamma ray observatory with full sky coverage. Its aim is improving by about one order of magnitude the sensitivity of the existing installations,…

Instrumentation and Methods for Astrophysics · Physics 2011-11-10 The CTA Consortium

The planned Cherenkov Telescope Array (CTA), a future ground-based Very-High-Energy (VHE) gamma-ray observatory, will be the largest project of its kind. It aims to provide an order of magnitude increase in sensitivity compared to currently…

We compute the sensitivity to dark matter annihilations for the forthcoming large Cherenkov Telescope Array (CTA) in several primary channels and over a range of dark matter masses from 30 GeV up to 80 TeV. For all channels, we include…

High Energy Astrophysical Phenomena · Physics 2015-06-29 Valentin Lefranc , Emmanuel Moulin , Paolo Panci , Joseph Silk

Context. The recent discovery of several ultra high-energy gamma-ray emitters in our Galaxy represents a significant advancement towards the characterisation of its most powerful accelerators. Nonetheless, in order to unambiguously locate…

High Energy Astrophysical Phenomena · Physics 2024-09-25 Silvia Celli , Giada Peron

Several observations are revealing the widespread occurrence of mildly relativistic wide-angle AGN winds strongly interacting with the gas of their host galaxy. Such winds are potential cosmic-ray accelerators, as supported by gamma-ray…

High Energy Astrophysical Phenomena · Physics 2019-04-18 Alessandra Lamastra , Fabrizio Tavecchio , Patrizia Romano , Marco Landoni , Stefano Vercellone

We discuss the potentials of several experimental configurations dedicated to direct measurements of charged cosmic ray (CR) nuclei at energies $\gsim$ 100 GeV/n. Within a two-zone propagation model for stable CRs, we calculate light…

Astrophysics · Physics 2009-11-10 A. Castellina , F. Donato

Very High Energy gamma-ray astronomy with the Cherenkov Telescope Array (CTA) is evolving towards the model of a public observatory. Handling, processing and archiving the large amount of data generated by the CTA instruments and delivering…

The observed spectral bump in cosmic-ray (CR) proton and helium spectra, along with the phase and amplitude evolution of CR dipole anisotropy, provide plausible yet indirect evidence for the presence of a nearby CR source. This study…

High Energy Astrophysical Phenomena · Physics 2025-06-25 Xing-Jian Lv , Xiao-Jun Bi , Kun Fang , Peng-Fei Yin , Meng-Jie Zhao

The Cherenkov Telescope Array (CTA) is the future large observatory in the very high energy (VHE) domain. Operating from 20 GeV to 300 TeV, it will be composed of tens of Imaging Air Cherenkov Telescopes (IACTs) displaced in a large area of…

Instrumentation and Methods for Astrophysics · Physics 2016-08-18 Valentina Fioretti , Andrea Bulgarelli , Fabian Schussler

The Cherenkov Telescope Array and the KM3NeT neutrino telescopes are major upcoming facilities in the fields of $\gamma$-ray and neutrino astronomy, respectively. Possible simultaneous production of $\gamma$ rays and neutrinos in…

High Energy Astrophysical Phenomena · Physics 2024-02-05 T. Unbehaun , L. Mohrmann , S. Funk , S. Aiello , A. Albert , S. Alves Garre , Z. Aly , A. Ambrosone , F. Ameli , M. Andre , E. Androutsou , M. Anghinolfi , M. Anguita , L. Aphecetche , M. Ardid , S. Ardid , H. Atmani , J. Aublin , C. Bagatelas , L. Bailly-Salins , Z. Bardačová , B. Baret , S. Basegmez du Pree , Y. Becherini , M. Bendahman , F. Benfenati , M. Benhassi , D. M. Benoit , E. Berbee , V. Bertin , S. Biagi , M. Boettcher , M. Bou Cabo , J. Boumaaza , M. Bouta , M. Bouwhuis , C. Bozza , R. M. Bozza , H. Brânzaş , F. Bretaudeau , R. Bruijn , J. Brunner , R. Bruno , E. Buis , R. Buompane , J. Busto , B. Caiffi , D. Calvo , S. Campion , A. Capone , F. Carenini , V. Carretero , T. Cartraud , P. Castaldi , V. Cecchini , S. Celli , L. Cerisy , M. Chabab , M. Chadolias , A. Chen , S. Cherubini , T. Chiarusi , M. Circella , R. Cocimano , J. A. B. Coelho , A. Coleiro , R. Coniglione , P. Coyle , A. Creusot , A. Cruz , G. Cuttone , R. Dallier , Y. Darras , A. De Benedittis , B. De Martino , V. Decoene , R. Del Burgo , L. S. Di Mauro , I. Di Palma , A. F. Díaz , D. Diego-Tortosa , C. Distefano , A. Domi , C. Donzaud , D. Dornic , M. Dörr , E. Drakopoulou , D. Drouhin , R. Dvornický , T. Eberl , E. Eckerová , A. Eddymaoui , T. van Eeden , M. Eff , D. van Eijk , I. El Bojaddaini , S. El Hedri , A. Enzenhöfer , G. Ferrara , M. D. Filipović , F. Filippini , L. A. Fusco , J. Gabriel , T. Gal , J. García Méndez , A. Garcia Soto , C. Gatius Oliver , N. Geißelbrecht , H. Ghaddari , L. Gialanella , B. K. Gibson , E. Giorgio , A. Girardi , I. Goos , S. R. Gozzini , R. Gracia , K. Graf , D. Guderian , C. Guidi , B. Guillon , M. Gutiérrez , H. van Haren , A. Heijboer , A. Hekalo , L. Hennig , J. J. Hernández-Rey , F. Huang , W. Idrissi Ibnsalih , G. Illuminati , C. W. James , M. de Jong , P. de Jong , B. J. Jung , P. Kalaczyński , O. Kalekin , U. F. Katz , N. R. Khan Chowdhury , A. Khatun , G. Kistauri , F. van der Knaap , A. Kouchner , V. Kulikovskiy , R. Kvatadze , M. Labalme , R. Lahmann , G. Larosa , C. Lastoria , A. Lazo , S. Le Stum , G. Lehaut , E. Leonora , N. Lessing , G. Levi , M. Lindsey Clark , F. Longhitano , J. Majumdar , L. Malerba , J. Mańczak , A. Manfreda , M. Marconi , A. Margiotta , A. Marinelli , C. Markou , L. Martin , F. Marzaioli , M. Mastrodicasa , S. Mastroianni , S. Miccichè , G. Miele , P. Migliozzi , E. Migneco , P. Mijakowski , M. L. Mitsou , C. M. Mollo , L. Morales-Gallegos , C. Morley-Wong , A. Mosbrugger , A. Moussa , I. Mozun Mateo , R. Muller , M. R. Musone , M. Musumeci , L. Nauta , S. Navas , A. Nayerhoda , C. A. Nicolau , B. Nkosi , B. Ó Fearraigh , V. Oliviero , A. Orlando , E. Oukacha , J. Palacios González , G. Papalashvili , E. J. Pastor Gomez , A. M. Păun , G. E. Păvălaş , S. Peña Martínez , M. Perrin-Terrin , J. Perronnel , V. Pestel , R. Pestes , P. Piattelli , C. Poirè , V. Popa , T. Pradier , S. Pulvirenti , G. Quéméner , C. Quiroz , U. Rahaman , N. Randazzo , S. Razzaque , I. C. Rea , D. Real , S. Reck , G. Riccobene , J. Robinson , A. Romanov , L. Roscilli , A. Saina , F. Salesa Greus , D. F. E. Samtleben , A. Sánchez Losa , M. Sanguineti , C. Santonastaso , D. Santonocito , P. Sapienza , J. Schnabel , M. F. Schneider , J. Schumann , H. M. Schutte , J. Seneca , N. Sennan , B. Setter , I. Sgura , R. Shanidze , Y. Shitov , F. Šimkovic , A. Simonelli , A. Sinopoulou , M. V. Smirnov , B. Spisso , M. Spurio , D. Stavropoulos , I. Štekl , M. Taiuti , Y. Tayalati , H. Tedjditi , H. Thiersen , I. Tosta e Melo , B. Trocme , S. Tsagkli , V. Tsourapis , E. Tzamariudaki , A. Vacheret , V. Valsecchi , V. Van Elewyck , G. Vannoye , G. Vasileiadis , F. Vazquez de Sola , C. Verilhac , A. Veutro , S. Viola , D. Vivolo , H. Warnhofer , J. Wilms , E. de Wolf , T. Yousfi , G. Zarpapis , S. Zavatarelli , A. Zegarelli , D. Zito , J. D. Zornoza , J. Zúñiga , N. Zywucka

The Cherenkov Telescope Array (CTA) \cite{CTA:2010} will be the successor to current Imaging Atmospheric Cherenkov Telescopes (IACT) like H.E.S.S., MAGIC and VERITAS. CTA will improve in sensitivity by about an order of magnitude compared…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 E. Birsin , J. Colomé , D. Hoffmann , H. Koeppel , G. Lamanna , T. Le Flour , A. Lopatin , E. Lyard , D. Melkumyan , I. Oya , J-L. Panazol , S. Schlenstedt , T. Schmidt , U. Schwanke , R. Walter , P. Wegner

The physics of the non-thermal Universe provides information on the acceleration mechanisms in extreme environments, such as black holes and relativistic jets, neutron stars, supernovae or clusters of galaxies. In the presence of magnetic…

Instrumentation and Methods for Astrophysics · Physics 2021-06-11 C. Boisson , A. M. Brown , A. Burtovoi , M. Cerruti , M. Chernyakova , T. Hassan , J. -P. Lenain , M. Manganaro , P. Romano , H. Sol , F. Tavecchio , S. Vercellone , L. Zampieri , R. Zanin , A. Zech , I. Agudo , R. Alves Batista , E. O. Anguner , L. A. Antonelli , M. Backes , C. Balazs , J. Becerra González , C. Bigongiari , E. Bissaldi , J. Bolmont , P. Bordas , Ž. Bošnjak , M. Böttcher , M. Burton , F. Cangemi , P. Caraveo , M. Cardillo , S. Caroff , A. Carosi , S. Casanova , S. Chaty , J. L. Contreras , J. G. Coelho , G. Cotter , A. D'Aì , F. D'Ammando , E. M. de Gouveia Dal Pino , D. de Martino , C. Delgado , D. della Volpe , A. Djannati-Ataï , R. C. Dos Anjos , E. de Oña Wilhelmi , V. Dwarkadas , G. Emery , E. Fedorova , S. Fegan , M. D. Filipovic , G. Galanti , D. Gasparrini , G. Ghirlanda , P. Goldoni , J. Granot , J. G. Green , M. Heller , B. Hnatyk , R. Hnatyk , D. Horan , T. Hovatta , S. Inoue , M. Jamrozy , B. Khélifi , N. Komin , K. Kohri , A. Lamastra , N. La Palombara , E. Lindfors , I. Liodakis , S. Lombardi , F. Longo , F. Lucarelli , P. L. Luque-Escamilla , J. Marti , M. Martinez , D. Mazin , J. D. Mbarubucyeye , S. Menchiari , L. Mohrmann , T. Montaruli , A. Moralejo Olaizola , D. Morcuende , G. Morlino , A. Morselli , C. G. Mundell , T. Murach , A. Nagai , A. Nayerhoda , J. Niemiec , M. Nikolajuk , B. Olmi , M. Orienti , J. M. Paredes , G. Pareschi , A. Pe'er , G. Pühlhofer , M. Punch , O. Reimer , M. Ribó , F. Rieger , G. Rodriguez , J. Rodriguez , G. Romeo , M. Roncadelli , G. Rowell , B. Rudak , I. Sadeh , F. Salesa Greus , U. Sawangwit , F. Schüssler , O. Sergijenko , R. C. Shellard , F. G. Saturni , A. Stamerra , Th. Stolarczyk , G. Tagliaferri , V. Testa , L. Tibaldo , S. Ventura , A. Viana , J. Vink , V. Vitale , S. Vorobiov , A. Wierzcholska , M. Zacharias , D. Zavrtanik