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The Cherenkov Telescope Array (CTA) is the next generation of Imaging Atmospheric Cherenkov Telescopes. It will reach a sensitivity and energy resolution never obtained until now by any other high energy gamma-ray experiment. Understanding…

Instrumentation and Methods for Astrophysics · Physics 2018-01-22 G. Vasileiadis , O. Blanch , J. Bregeon , P. Brun , O. Calpe , M. Colak , M. Doro , L. Font , M. Gaug , S. Griffiths , C. Maggio , M. Martinez , O. Martinez , P. Ristori , S. Rivoire

The Cherenkov Telescope Array Observatory (CTAO) is a next-generation facility for ground-based very high energy gamma ray astronomy. CTAO will be operated as an open observatory. With two sites, in the northern and southern hemispheres,…

Instrumentation and Methods for Astrophysics · Physics 2023-05-23 Werner Hofmann , Roberta Zanin

The Cherenkov Telescope Array (CTA) is an international project for a next-generation ground-based gamma-ray observatory. CTA, conceived as an array of tens of imaging atmospheric Cherenkov telescopes, comprising small, medium and…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 T. Hassan , B. Humensky , D. Nieto , M. Wood

Very high energy (VHE, i.e. $\gtrsim 10$ GeV) photons from Gamma-Ray Bursts (GRBs), as high as 90 GeV in rest frame energy, have been detected by the $Fermi$ Large Area Telescope (LAT). This provides hope for a high statistics GRB detection…

High Energy Astrophysical Phenomena · Physics 2011-09-27 Aurelien Bouvier , Rudy Gilmore , Valerie Connaughton , Nepomuk Otte , Joel R. Primack , David A. Williams

The Cherenkov Telescope Array (CTA) will be the next generation instrument for the very high energy gamma-ray astrophysics domain. With its enhanced sensitivity in comparison with the current facilities, CTA is expected to shed light on a…

High Energy Astrophysical Phenomena · Physics 2020-01-08 Enrique Mestre , Emma de Oña Wilhelmi , Roberta Zanin , Diego F. Torres , Luigi Tibaldo

Blazars are the most numerous type of observed high-energy gamma-ray emitters. However, their emission mechanisms and population properties are still not well-understood. Crucial to this understanding are their cosmological redshifts, which…

High Energy Astrophysical Phenomena · Physics 2023-03-24 Eli Kasai , Paolo Goldoni , Santiago Pita , Catherine Boisson , Michael Backes , Garret Cotter , Filippo D'Ammando , Brian van Soelen

Observations from multiple gamma-ray telescopes have uncovered a high energy gamma-ray source spatially coincident with the Galactic center. Recently, a compelling model for the broad-band gamma-ray emission has been formulated which posits…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Tim Linden , Stefano Profumo

The Cherenkov Telescope Array (CTA) is the next-generation stereoscopic system of Imaging Atmospheric Cherenkov Telescopes (IACTs). In IACTs, the atmosphere is used as a calorimeter to measure the energy of extensive air showers induced by…

Instrumentation and Methods for Astrophysics · Physics 2023-06-14 Mario Pecimotika , Dijana Dominis Prester , Dario Hrupec , Saša Mićanović , Lovro Pavletić , Julian Sitarek

The Cherenkov Telescope Array (CTA) is the next generation very-high energy gamma-ray air-shower Cherenkov observatory. CTA will consist of many segmented-mirror telescopes of three different diameters, placed in two arrays, one in the…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 A. Bonardi , J. Dick , E. Kendziorra , G. Pühlhofer , A. Santangelo

The Cherenkov Telescope Array (CTA) is a ground-based $\gamma$-ray observatory that will observe the full sky in the energy range from 20 GeV to 100 TeV from facilities in both hemispheres. It is proposed to consist of more than 100…

Instrumentation and Methods for Astrophysics · Physics 2015-09-08 Ramin Marx , Raquel de los Reyes

The Cherenkov Telescope Array (CTA) is a next-generation ground-based observatory for g -rays with energies between some ten GeV and a few hundred TeV. CTA is currently in the advanced design phase and will consist of arrays with different…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 M. Shayduk , S. Vorobiov , U. Schwanke , R. Wischnewski

Surveys open up unbiased discovery space and generate legacy datasets of long-lasting value. One of the goals of imaging arrays of Cherenkov telescopes like CTA is to survey areas of the sky for faint very high energy gamma-ray (VHE)…

High Energy Astrophysical Phenomena · Physics 2019-08-14 G. Dubus , J. L. Contreras , S. Funk , Y. Gallant , T. Hassan , J. Hinton , Y. Inoue , J. Knödlseder , P. Martin , N. Mirabal , M. de Naurois , M. Renaud

The Cherenkov Telescope Array (CTA) is the future instrument in ground-based gamma-ray astronomy in the energy range from 20 GeV to 300 TeV. Its sensitivity will surpass that of current generation experiments by a factor $\sim$10,…

Instrumentation and Methods for Astrophysics · Physics 2017-08-09 A. Schulz , M. Garczarczyk , L. Oakes , S. Schlenstedt , U. Schwanke , the CTA Consortium

Pulsars are observed to emit bright and spatially extended emission at multi-TeV energies. Although such "TeV halos" appear to be an approximately universal feature of middle-aged pulsars, there remains much to be understood about these…

High Energy Astrophysical Phenomena · Physics 2023-12-19 Dan Hooper , Elena Pinetti , Anastasia Sokolenko

The Cherenkov Telescope Array (CTA) is an atmospheric Cherenkov observatory that will image the cosmos in very-high-energy gamma rays. CTA will study the highest-energy particle accelerators in the Universe and potentially confirm the…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 J. Vandenbroucke

The detection of gravitational waves from a binary neutron star merger by Advanced LIGO and Advanced Virgo (GW170817), along with the discovery of the electromagnetic counterparts of this gravitational wave event, ushered in a new era of…

High Energy Astrophysical Phenomena · Physics 2024-02-07 Jarred Gershon Green , Alessandro Carosi , Lara Nava , Barbara Patricelli , Fabian Schüssler , Monica Seglar-Arroyo , Cta Consortium , : , Kazuki Abe , Shotaro Abe , Atreya Acharyya , Remi Adam , Arnau Aguasca-Cabot , Ivan Agudo , Jorge Alfaro , Nuria Alvarez-Crespo , Rafael Alves Batista , Jean-Philippe Amans , Elena Amato , Filippo Ambrosino , Ekrem Oguzhan Angüner , Lucio Angelo Antonelli , Carla Aramo , Cornelia Arcaro , Luisa Arrabito , Katsuaki Asano , Jann Aschersleben , Halim Ashkar , Luiz Augusto Stuani , Dominik Baack , Michael Backes , Csaba Balazs , Matteo Balbo , Andres Baquero Larriva , Victor Barbosa Martins , Ulisses Barres de Almeida , Juan Abel Barrio , Denis Bastieri , Pedro Ivo Batista , Ivana Batković , Rowan William Batzofin , Joshua Ryo Baxter , Geoffrey Beck , Julia Becker Tjus , Lukas Beiske , Daniele Belardinelli , Wystan Benbow , Elisa Bernardini , Juan Bernete Medrano , Konrad Bernlöhr , Alessio Berti , Vasyl Beshley , Pooja Bhattacharjee , Saptashwa Bhattacharyya , Baiyang Bi , Noah Biederbeck , Adrian Biland , Elisabetta Bissaldi , Oscar Blanch , Jiri Blazek , Catherine Boisson , Julien Bolmont , Giacomo Bonnoli , Pol Bordas , Željka Bošnjak , Federica Bradascio , Catherine Braiding , Ettore Bronzini , Robert Brose , Anthony M. Brown , Francois Brun , Giulia Brunelli , Andrea Bulgarelli , Irene Burelli , Leonid Burmistrov , Michael Burton , Tomas Bylund , Paolo Gherardo Calisse , Anna Campoy-Ordaz , Brandon Khan Cantlay , Milvia Capalbi , Anderson Caproni , Roberto Capuzzo-Dolcetta , Colin Carlile , Sami Caroff , Alessandro Carosi , Roberto Carosi , Marie-Sophie Carrasco , Enrico Cascone , Franca Cassol , Noelia Castrejon , Fernando Catalani , Davide Cerasole , Matteo Cerruti , Sylvain Chaty , Andrew W Chen , Maria Chernyakova , Andrea Chiavassa , Jiří Chudoba , Carlos Henrique Coimbra Araujo , Vito Conforti , Francesco Conte , Jose Luis Contreras , Christophe Cossou , Alessandro Costa , Heide Costantini , Pierre Cristofari , Omar Cuevas , Zachary Curtis-Ginsberg , Giacomo D'Amico , Filippo D'Ammando , Mauro Dadina , Mykhailo Dalchenko , Ludovic David , Isak Delberth Davids , Francesco Dazzi , Alessandro De Angelis , Mathieu de Bony de Lavergne , Vincenzo De Caprio , Giovanni De Cesare , Elisabete M. de Gouveia Dal Pino , Barbara De Lotto , Mario de Lucia , Raniere de Menezes , Mathieu de Naurois , Emma de Oña Wilhelmi , Nicola De Simone , Vitor de Souza , Luis Del Peral , Maria Victoria del Valle , Eric Delagnes , Andres Gabriel Delgado Giler , Carlos Delgado , Michael Dell'aiera , Roberto Della Ceca , Massimo Della Valle , Domenico Della Volpe , Davide Depaoli , Antonios Dettlaff , Tristano Di Girolamo , Ambra Di Piano , Federico Di Pierro , Riccardo Di Tria , Leonardo Di Venere , Christian Díaz-Bahamondes , Claudio Dib , Sebastian Diebold , Razvan Dima , Adithiya Dinesh , Arache Djannati-Ataï , Julia Isabel Djuvsland , Alberto Dominguez , Rune Michael Dominik , Alice Donini , Daniela Dorner , Julien Dörner , Michele Doro , Rita de Cassia dos Anjos , Jean-Laurent Dournaux , Dainis Dravins , Chaimongkol Duangchan , Coline Dubos , Lozenzo Ducci , Vikram V. Dwarkadas , Jan Ebr , Christopher Eckner , Kathrin Egberts , Sabrina Einecke , Dominik Elsässer , Gabriel Emery , Miguel Escobar Godoy , Juan Escudero , Paolo Esposito , Diego Falceta-Gonçalves , Vandad Fallah Ramazani , Alice Faure , Elena Fedorova , Stephen Fegan , Kirsty Feijen , Qi Feng , Gilles Ferrand , Fabio Ferrarotto , Emanuele Fiandrini , Armand Fiasson , Valentina Fioretti , Luca Foffano , Lluis Font Guiteras , Gerard Fontaine , Stefan Fröse , Satoshi Fukami , Yasuo Fukui , Stefan Funk , Daniele Gaggero , Giorgio Galanti , Gaspar Galaz , Yves A. Gallant , Stefano Gallozzi , Viviana Gammaldi , Claudio Gasbarra , Markus Gaug , Arsen Ghalumyan , Fulvio Gianotti , Marina Giarrusso , Nicola Giglietto , Francesco Giordano , Andrea Giuliani , Jean-Francois Glicenstein , Jonas Glombitza , Paolo Goldoni , José Mauricio González , Maria Magdalena González , Jaziel Goulart Coelho , Jonathan Granot , Dario Grasso , Roger Grau Haro , David Green , Tim Greenshaw , Guillaume Grolleron , Jeff Grube , Orel Gueta , Shuichi Gunji , Daniela Hadasch , Petr Hamal , William Hanlon , Satoshi Hara , Violet M. Harvey , Kazuaki Hashiyama , Tarek Hassan , Matthieu Heller , Sergio Hernández Cadena , Jonathan Hie , Nagisa Hiroshima , Bohdan Hnatyk , Roman Hnatyk , Dirk Hoffmann , Werner Hofmann , Markus Holler , Deirdre Horan , Pavel Horvath , Talvikki Hovatta , Dario Hrupec , Saqib Hussain , Marco Iarlori , Tomohiro Inada , Federico Incardona , Yusuke Inome , Susumu Inoue , Fabio Iocco , Kazuma Ishio , Marek Jamrozy , Petr Janecek , Felix Jankowsky , Christian Jarnot , Pierre Jean , Irene Jiménez Martínez , Weidong Jin , Laurent Jocou , Claire Juramy-Gilles , Jakub Jurysek , Oleg KALEKIN , Dimitrios Kantzas , Vladimir Karas , Sarah Kaufmann , Daniel Kerszberg , Bruno Khelifi , David B Kieda , Tobias Kai Kleiner , Włodzimierz Kluźniak , Yukiho Kobayashi , Kazunori Kohri , Nukri Komin , Paula Kornecki , Karl Kosack , Hidetoshi Kubo , Junko Kushida , Antonino La Barbera , Nicola La Palombara , Maria Lainez , Alessandra Lamastra , Jon S Lapington , Sanja Lazarevic , Jasmina Lazendic-Galloway , Steven Leach , Marianne Lemoine-Goumard , Jean-Philippe Lenain , Giuseppe Leto , Fabian Leuschner , Elina Lindfors , Maximilian Linhoff , Ioannis Liodakis , Lozach Loïc , Saverio Lombardi , Francesco Longo , Rubén López-Coto , Marcos López-Moya , Alicia López-Oramas , Serena Loporchio , Julio Lozano Bahilo , Pedro L. Luque-Escamilla , Oscar Macias , Gernot Maier , Pratik Majumdar , Denys Malyshev , Dmitry Malyshev , Dusan Mandat , Giulio Manicò , Peter David Marinos , Sera Markoff , Isabel Márquez , Patricia Marquez , Giovanni Marsella , Josep Martí , Pierrick Martin , Gustavo Augusto Martínez , Manel Martínez , Oibar Martinez , Christophe Marty , Alvaro Mas-Aguilar , Michele Mastropietro , Gilles Maurin , Walter Max-Moerbeck , Daniel Mazin , David Melkumyan , Stefano Menchiari , Enrique Mestre , Jean-Luc Meunier , Dominique M. -A. Meyer , Davide Miceli , Miltiadis Michailidis , Jerzy Michałowski , Tjark Miener , Jose Miguel Miranda , Alison Mitchell , Masaya Mizote , Tsunefumi Mizuno , Rafal Moderski , Lars Mohrmann , Miguel Molero , Cesare Molfese , Edgar Molina , Teresa Montaruli , Abelardo Moralejo , Daniel Morcuende , Katharina Morik , Aldo Morselli , Emmanuel Moulin , Victor Moya Zamanillo , Reshmi Mukherjee , Kevin Munari , Adam Muraczewski , Hiroshi Muraishi , Takeshi Nakamori , Lara Nava , Amrit Nayak , Rodrigo Nemmen , Lukas Nickel , Jacek Niemiec , Daniel Nieto , Mireia Nievas Rosillo , Marek Nikołajuk , Kyoshi Nishijima , Koji Noda , Dalibor Nosek , Bohdan Novosyadlyj , Vladimír Novotný , Seiya Nozaki , Paul O'Brien , Michiko Ohishi , Yoshiki Ohtani , Akira Okumura , Jean-François Olive , Barbara Olmi , Rene A. Ong , Monica Orienti , Reiko Orito , Mauro Orlandini , Elena Orlando , Michal Ostrowski , Nepomuk Otte , Igor Oya , Isabella Pagano , Antonio Pagliaro , Michele Palatiello , Gabriele Panebianco , Josep M. Paredes , Nicolò Parmiggiani , Sonal Ramesh Patel , Barbara Patricelli , Dijana Pavlović , Asaf Pe'er , Miroslav Pech , Mario Pecimotika , Michele Peresano , Judit Pérez-Romero , Giada Peron , Massimo Persic , Pierre-Olivier Petrucci , Oleh Petruk , Felix Pfeifle , Fabio Pintore , Giorgio Pirola , Carlotta Pittori , Cyann Plard , Franjo Podobnik , Martin Pohl , Estelle Pons , Elisa Prandini , Julie Prast , Giacomo Principe , Chaitanya Priyadarshi , Nicolas Produit , Dmitry Prokhorov , Elisa Pueschel , Gerd Pühlhofer , Maria Letizia Pumo , Michael Punch , Andreas Quirrenbach , Silvia Raino , Nunzio Randazzo , Riccardo Rando , Thierry Ravel , Soebur Razzaque , Maxime Regeard , Patrick Reichherzer , Anita Reimer , Olaf Reimer , Andreas Reisenegger , Thierry Reposeur , Brian Reville , Wolfgang Rhode , Marc Ribó , Tom Richtler , Frank Rieger , Emmet Roache , Gonzalo Rodriguez Fernandez , Maria Dolores Rodríguez Frías , Juan José Rodríguez-Vázquez , Patrizia Romano , Giuseppe Romeo , Jaime Rosado , Gavin P Rowell , Bronislaw Rudak , Ashley J. Ruiter , Cameron Boyd Rulten , Federico Russo , Iftach Sadeh , Lab Saha , Takayuki Saito , Shunsuke Sakurai , Heiko Salzmann , David Sanchez , Miguel Sanchez-Conde , Pierluca Sangiorgi , Hidetoshi Sano , Marcos Santander , Andrea Santangelo , Reinaldo Santos-Lima , Andreu Sanuy , Toni Šarić , Arkadipta Sarkar , Subir Sarkar , Francesco Gabriele Saturni , Volodymyr Savchenko , Andres Scherer , Pietro Schipani , Bernd Schleicher , Petr Schovanek , Jan Lukas Schubert , Fabian Schüssler , Ullrich Schwanke , Georg Schwefer , Salvatore Scuderi , Monica Seglar Arroyo , Ivo Seitenzahl , Olga Sergijenko , Vito Sguera , Ruo-Yu Shang , Pooja Sharma , Guereguin Der Sylvestre Sidibe , Lara Sidoli , Hubert Siejkowski , Clarissa Siqueira , Patrick Sizun , Vitalii Sliusar , Agnieszka Slowikowska , Helene Sol , Andreas Specovius , Samuel Timothy Spencer , Daniele Spiga , Antonio Stamerra , Samo Stanič , Tomasz Starecki , Rhaana Starling , Constantin Steppa , Thierry Stolarczyk , Jelena Strišković , Marcel C. Strzys , Yusuke Suda , Tiina Suomijarvi , Donggeun Tak , Mitsunari Takahashi , Ryuji Takeishi , Pak-Hin Thomas Tam , Shuta J Tanaka , Takaaki Tanaka , Kenta Terauchi , Vincenzo Testa , Luigi Tibaldo , Omar Tibolla , Francesc Torradeflot , Diego F. Torres , Eleonora Torresi , Nick Tothill , Francois Toussenel , Victoria Touzard , Andrea Tramacere , Petr Travnicek , Giovanni Tripodo , Stefano Truzzi , Adellain Tsiahina , Antonio Tutone , Martin Vacula , Bertrand Vallage , Piero Vallania , Ramon Vallés , Christopher van Eldik , Juliane van Scherpenberg , Justin Vandenbroucke , Vladimir Vassiliev , Philippe Venault , Sofia Ventura , Stefano Vercellone , Gaia Verna , Aion Viana , Nicolás Viaux , Alessandro Vigliano , Jonatan Vignatti , Carlo francesco Vigorito , Vincenzo Vitale , Veronika Vodeb , Vincent Voisin , Serguei Vorobiov , Georgios Gerasimos Voutsinas , Ievgen Vovk , Vincent Waegebaert , Stefan Joachim Wagner , Roland Walter , Martin Ward , Maneenate Wechakama , Richard White , Alicja Wierzcholska , Martin Will , David A. Williams , Frederik Wohlleben , Anna Wolter , Tokonatsu Yamamoto , Ryo Yamazaki , Lili Yang , Tatsuo Yoshida , Takanori Yoshikoshi , Michael Zacharias , Ricardo Zanmar Sanchez , Danilo Zavrtanik , Marko Zavrtanik , Andrzej A. Zdziarski , Andreas Zech , Valery I. Zhdanov , Krzysztof Ziȩtara , Miha Živec , Jaume Zuriaga-Puig

The First Fermi-LAT catalog (1FGL) represents the most complete list of sources in the GeV sky to date. We use the reported 1FGL spectral parameters to extrapolate Fermi AGN spectra to the very-high energy (VHE) range (15 GeV - 300 TeV).…

High Energy Astrophysical Phenomena · Physics 2019-08-14 T. Hassan , N. Mirabal , J. L. Contreras

One of the central scientific goals of the next-generation Cherenkov Telescope Array (CTA) is the detection and characterization of gamma-ray bursts (GRBs). CTA will be sensitive to gamma rays with energies from about 20 GeV, up to a few…

The Universe opacity to gamma rays is still an open question, in particular anomalies may have been observed. Assuming that such anomalies find their origin in conventional physics like intrinsic source spectra or the density of the…

High Energy Astrophysical Phenomena · Physics 2014-02-19 D. Wouters , P. Brun

The Cherenkov Telescope Array (CTA) is a future very high energy gamma-ray observatory. CTA will be comprised of small-, medium- and large-size telescopes covering an energy range from tens of GeV to hundreds of TeV and will surpass…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 T. Jogler , M. D. Wood , J. Dumm