English
Related papers

Related papers: CTAO Simulations for Potential PeVatron Candidates

200 papers

LHAASO J2108+5157 is one of the few known unidentified Ultra-High-Energy (UHE) gamma-ray sources with no Very-High-Energy (VHE) counterpart, recently discovered by the LHAASO collaboration. We observed LHAASO J2108+5157 in the X-ray band…

High Energy Astrophysical Phenomena · Physics 2023-05-10 S. Abe , A. Aguasca-Cabot , I. Agudo , N. Alvarez Crespo , L. A. Antonelli , C. Aramo , A. Arbet-Engels , M. Artero , K. Asano , P. Aubert , A. Baktash , A. Bamba , A. Baquero Larriva , L. Baroncelli , U. Barres de Almeida , J. A. Barrio , I. Batkovic , J. Baxter , J. Becerra González , E. Bernardini , M. I. Bernardos , J. Bernete Medrano , A. Berti , P. Bhattacharjee , N. Biederbeck , C. Bigongiari , E. Bissaldi , O. Blanch , P. Bordas , C. Buisson , A. Bulgarelli , I. Burelli , M. Buscemi , M. Cardillo , S. Caroff , A. Carosi , F. Cassol , D. Cauz , G. Ceribella , Y. Chai , K. Cheng , A. Chiavassa , M. Chikawa , L. Chytka , A. Cifuentes , J. L. Contreras , J. Cortina , H. Costantini , G. D'Amico , M. Dalchenko , A. De Angelis , M. de Bony de Lavergne , B. De Lotto , R. de Menezes , G. Deleglise , C. Delgado , J. Delgado Mengual , D. della Volpe , M. Dellaiera , A. Di Piano , F. Di Pierro , R. Di Tria , L. Di Venere , C. Díaz , R. M. Dominik , D. Dominis Prester , A. Donini , D. Dorner , M. Doro , D. Elsässer , G. Emery , J. Escudero , V. Fallah Ramazani , G. Ferrara , A. Fiasson , L. Freixas Coromina , S. Fröse , S. Fukami , Y. Fukazawa , E. Garcia , R. Garcia López , D. Gasparrini , D. Geyer , J. Giesbrecht Paiva , N. Giglietto , F. Giordano , E. Giro , P. Gliwny , N. Godinovic , R. Grau , D. Green , J. Green , S. Gunji , J. Hackfeld , D. Hadasch , A. Hahn , K. Hashiyama , T. Hassan , K. Hayashi , L. Heckmann , M. Heller , J. Herrera Llorente , K. Hirotani , D. Hoffmann , D. Horns , J. Houles , M. Hrabovsky , D. Hrupec , D. Hui , M. Hütten , R. Imazawa , T. Inada , Y. Inome , K. Ioka , M. Iori , K. Ishio , Y. Iwamura , M. Jacquemont , I. Jimenez Martinez , J. Jurysek , M. Kagaya , V. Karas , H. Katagiri , J. Kataoka , D. Kerszberg , Y. Kobayashi , A. Kong , H. Kubo , J. Kushida , M. Lainez , G. Lamanna , A. Lamastra , T. Le Flour , M. Linhoff , F. Longo , R. López-Coto , M. López-Moya , A. López-Oramas , S. Loporchio , A. Lorini , P. L. Luque-Escamilla , P. Majumdar , M. Makariev , D. Mandat , M. Manganaro , G. Manicò , K. Mannheim , M. Mariotti , P. Marquez , G. Marsella , J. Martí , O. Martinez , G. Martínez , M. Martínez , P. Marusevec , A. Mas-Aguilar , G. Maurin , D. Mazin , E. Mestre Guillen , S. Micanovic , D. Miceli , T. Miener , J. M. Miranda , R. Mirzoyan , T. Mizuno , M. Molero Gonzalez , E. Molina , T. Montaruli , I. Monteiro , A. Moralejo , D. Morcuende , A. Morselli , K. Mrakovcic , K. Murase , A. Nagai , T. Nakamori , L. Nickel , M. Nievas , K. Nishijima , K. Noda , D. Nosek , S. Nozaki , M. Ohishi , Y. Ohtani , N. Okazaki , A. Okumura , R. Orito , J. Otero-Santos , M. Palatiello , D. Paneque , F. R. Pantaleo , R. Paoletti , J. M. Paredes , L. Pavletić , M. Pech , M. Pecimotika , E. Pietropaolo , G. Pirola , F. Podobnik , V. Poireau , M. Polo , E. Pons , E. Prandini , J. Prast , C. Priyadarshi , M. Prouza , R. Rando , W. Rhode , M. Ribó , V. Rizi , G. Rodriguez Fernandez , T. Saito , S. Sakurai , D. A. Sanchez , T. Šarić , F. G. Saturni , J. Scherpenberg , B. Schleicher , F. Schmuckermaier , J. L. Schubert , F. Schussler , T. Schweizer , M. Seglar Arroyo , J. Sitarek , V. Sliusar , A. Spolon , J. Strišković , M. Strzys , Y. Suda , Y. Sunada , H. Tajima , M. Takahashi , H. Takahashi , J. Takata , R. Takeishi , P. H. T. Tam , S. J. Tanaka , D. Tateishi , P. Temnikov , Y. Terada , K. Terauchi , T. Terzic , M. Teshima , M. Tluczykont , F. Tokanai , D. F. Torres , P. Travnicek , S. Truzzi , A. Tutone , G. Uhlrich , M. Vacula , M. Vázquez Acosta , V. Verguilov , I. Viale , A. Vigliano , C. F. Vigorito , V. Vitale , G. Voutsinas , I. Vovk , T. Vuillaume , R. Walter , M. Will , T. Yamamoto , R. Yamazaki , T. Yoshida , T. Yoshikoshi , N. Zywucka , M. Balbo , D. Eckert , A. Tramacere

The origin of Galactic Cosmic Rays (GCRs) and the potential role of Supernova Remnants (SNRs) as cosmic-ray (CR) accelerators remain subjects of ongoing debate. To shed more light on this topic, we have studied the spectral shape of two…

High Energy Astrophysical Phenomena · Physics 2025-01-13 Coline Dubos , Pooja Sharma , Sonal Patel , Tiina Suomijärvi

Recently, the region surrounding eHWC J1842-035 has been studied extensively by gamma-ray observatories due to its extended emission reaching up to a few hundred TeV and potential as a hadronic accelerator. In this work, we use 1,910 days…

We discuss the discovery potential of extended very-high-energy (VHE) neutrino sources by the future KM3 Neutrino Telescope (KM3NeT) in the context of the constraining power of the Cherenkov Telescope Array (CTA), designed for deep surveys…

High Energy Astrophysical Phenomena · Physics 2018-04-04 Lucia Ambrogi , Silvia Celli , Felix Aharonian

Galactic PeVatrons are Galactic sources theorized to accelerate cosmic rays up to PeV in energy. The accelerated cosmic rays are expected to interact hadronically with nearby ambient gas or the interstellar medium, resulting in…

High Energy Astrophysical Phenomena · Physics 2023-03-15 R. Abbasi , M. Ackermann , J. Adams , N. Aggarwal , J. A. Aguilar , M. Ahlers , J. M. Alameddine , A. A. Alves , N. M. Amin , K. Andeen , T. Anderson , G. Anton , C. Argüelles , Y. Ashida , S. Athanasiadou , S. N. Axani , X. Bai , A. Balagopal V. , M. Baricevic , S. W. Barwick , V. Basu , R. Bay , J. J. Beatty , K. -H. Becker , J. Becker Tjus , J. Beise , C. Bellenghi , S. BenZvi , D. Berley , E. Bernardini , D. Z. Besson , G. Binder , D. Bindig , E. Blaufuss , S. Blot , F. Bontempo , J. Y. Book , J. Borowka , C. Boscolo Meneguolo , S. Böser , O. Botner , J. Böttcher , E. Bourbeau , J. Braun , B. Brinson , J. Brostean-Kaiser , R. T. Burley , R. S. Busse , M. A. Campana , E. G. Carnie-Bronca , Y. L. Chang , C. Chen , Z. Chen , D. Chirkin , S. Choi , B. A. Clark , L. Classen , A. Coleman , G. H. Collin , A. Connolly , J. M. Conrad , P. Coppin , P. Correa , S. Countryman , D. F. Cowen , C. Dappen , P. Dave , C. De Clercq , J. J. DeLaunay , D. Delgado López , H. Dembinski , K. Deoskar , A. Desai , P. Desiati , K. D. de Vries , G. de Wasseige , T. DeYoung , A. Diaz , J. C. Díaz-Vélez , M. Dittmer , H. Dujmovic , M. A. DuVernois , T. Ehrhardt , P. Eller , R. Engel , H. Erpenbeck , J. Evans , P. A. Evenson , K. L. Fan , A. R. Fazely , A. Fedynitch , N. Feigl , S. Fiedlschuster , A. T. Fienberg , C. Finley , L. Fischer , D. Fox , A. Franckowiak , E. Friedman , A. Fritz , P. Fürst , T. K. Gaisser , J. Gallagher , E. Ganster , A. Garcia , S. Garrappa , L. Gerhardt , A. Ghadimi , C. Glaser , T. Glauch , T. Glüsenkamp , N. Goehlke , J. G. Gonzalez , S. Goswami , D. Grant , S. J. Gray , T. Grégoire , S. Griffin , S. Griswold , C. Günther , P. Gutjahr , C. Haack , A. Hallgren , R. Halliday , L. Halve , F. Halzen , H. Hamdaoui , M. Ha Minh , K. Hanson , J. Hardin , A. A. Harnisch , P. Hatch , A. Haungs , K. Helbing , J. Hellrung , F. Henningsen , L. Heuermann , S. Hickford , A. Hidvegi , C. Hill , G. C. Hill , K. D. Hoffman , K. Hoshina , W. Hou , T. Huber , K. Hultqvist , M. Hünnefeld , R. Hussain , K. Hymon , S. In , N. Iovine , A. Ishihara , M. Jansson , G. S. Japaridze , M. Jeong , M. Jin , B. J. P. Jones , D. Kang , W. Kang , X. Kang , A. Kappes , D. Kappesser , L. Kardum , T. Karg , M. Karl , A. Karle , U. Katz , M. Kauer , J. L. Kelley , A. Kheirandish , K. Kin , J. Kiryluk , S. R. Klein , A. Kochocki , R. Koirala , H. Kolanoski , T. Kontrimas , L. Köpke , C. Kopper , D. J. Koskinen , P. Koundal , M. Kovacevich , M. Kowalski , T. Kozynets , K. Kruiswijk , E. Krupczak , A. Kumar , E. Kun , N. Kurahashi , N. Lad , C. Lagunas Gualda , M. Lamoureux , M. J. Larson , F. Lauber , J. P. Lazar , J. W. Lee , K. Leonard DeHolton , A. Leszczyńska , M. Lincetto , Q. R. Liu , M. Liubarska , E. Lohfink , C. Love , C. J. Lozano Mariscal , L. Lu , F. Lucarelli , A. Ludwig , W. Luszczak , Y. Lyu , W. Y. Ma , J. Madsen , K. B. M. Mahn , Y. Makino , S. Mancina , W. Marie Sainte , I. C. Mariş , S. Marka , Z. Marka , M. Marsee , I. Martinez-Soler , R. Maruyama , F. Mayhew , T. McElroy , F. McNally , J. V. Mead , K. Meagher , S. Mechbal , A. Medina , M. Meier , S. Meighen-Berger , Y. Merckx , L. Merten , J. Micallef , D. Mockler , T. Montaruli , R. W. Moore , Y. Morii , R. Morse , M. Moulai , T. Mukherjee , R. Naab , R. Nagai , U. Naumann , A. Nayerhoda , J. Necker , M. Neumann , H. Niederhausen , M. U. Nisa , A. Noell , S. C. Nowicki , A. Obertacke Pollmann , M. Oehler , B. Oeyen , A. Olivas , R. Orsoe , J. Osborn , E. O'Sullivan , H. Pandya , D. V. Pankova , N. Park , G. K. Parker , E. N. Paudel , L. Paul , C. Pérez de los Heros , J. Peterson , S. Philippen , S. Pieper , A. Pizzuto , M. Plum , Y. Popovych , A. Porcelli , M. Prado Rodriguez , B. Pries , R. Procter-Murphy , G. T. Przybylski , C. Raab , J. Rack-Helleis , M. Rameez , K. Rawlins , Z. Rechav , A. Rehman , P. Reichherzer , G. Renzi , E. Resconi , S. Reusch , W. Rhode , M. Richman , B. Riedel , E. J. Roberts , S. Robertson , S. Rodan , G. Roellinghoff , M. Rongen , C. Rott , T. Ruhe , L. Ruohan , D. Ryckbosch , D. Rysewyk Cantu , S. Athanasiadou , I. Safa , J. Saffer , D. Salazar-Gallegos , P. Sampathkumar , S. E. Sanchez Herrera , A. Sandrock , M. Santander , S. Sarkar , S. Sarkar , J. Savelberg , P. Savina , M. Schaufel , H. Schieler , S. Schindler , B. Schlueter , T. Schmidt , J. Schneider , F. G. Schröder , L. Schumacher , G. Schwefer , S. Sclafani , D. Seckel , S. Seunarine , A. Sharma , S. Shefali , N. Shimizu , M. Silva , B. Skrzypek , B. Smithers , R. Snihur , J. Soedingrekso , A. Søgaard , D. Soldin , C. Spannfellner , G. M. Spiczak , C. Spiering , M. Stamatikos , T. Stanev , R. Stein , T. Stezelberger , T. Stürwald , T. Stuttard , G. W. Sullivan , I. Taboada , S. Ter-Antonyan , W. G. Thompson , J. Thwaites , S. Tilav , K. Tollefson , C. Tönnis , S. Toscano , D. Tosi , A. Trettin , C. F. Tung , R. Turcotte , J. P. Twagirayezu , B. Ty , M. A. Unland Elorrieta , K. Upshaw , N. Valtonen-Mattila , J. Vandenbroucke , N. van Eijndhoven , D. Vannerom , J. van Santen , J. Vara , J. Veitch-Michaelis , S. Verpoest , D. Veske , C. Walck , T. B. Watson , C. Weaver , P. Weigel , A. Weindl , J. Weldert , C. Wendt , J. Werthebach , M. Weyrauch , N. Whitehorn , C. H. Wiebusch , N. Willey , D. R. Williams , M. Wolf , G. Wrede , J. Wulff , D. L. Xu , X. W. Xu , J. P. Yanez , E. Yildizci , S. Yoshida , S. Yu , T. Yuan , Z. Zhang , P. Zhelnin

The discovery of ultra-high energy gamma-ray sources (detected at energies $\geq$ 100 TeV) thanks to highly sensitive observatories such as the High Altitude Water Cherenkov (HAWC) Observatory, the Tibet AS-gamma Experiment, and the Large…

High Energy Astrophysical Phenomena · Physics 2023-06-13 E. de la Fuente , J. L. Flores , G. García-Toráles , J. C. Díaz-Vélez , I. Toledano-Juárez , the HAWC Collaboration

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

LHAASO has reported 43 sub-PeV $\gamma$-ray sources, which are promising candidates for cosmic-ray (CR) accelerators above the PeV energy, commonly called as PeVatrons. Multi-wavelength observations are crucial for identifying the…

High Energy Astrophysical Phenomena · Physics 2026-05-05 Tsunefumi Mizuno , Hidetoshi Sano , Takeru Murase , Tomohiko Oka , Hiromasa Suzuki , Naohito Nakahara

Recent multi-wavelength observations have highlighted magnetars as significant sources of cosmic rays, particularly through their gamma-ray emissions. This study examines three magnetar regions - CXOU J171405.7-31031, Swift J1834-0846, and…

High Energy Astrophysical Phenomena · Physics 2025-01-16 M. F. Sousa , R. Jr. Costa , Jaziel G. Coelho , R. C. Dos Anjos

The $\gamma$-ray spectrum of the source HAWC J1825-134 measured with the High Altitude Water Cherenkov (HAWC) observatory extends beyond 200 TeV without any evidence for a steepening or cutoff. There are some indications that the…

High Energy Astrophysical Phenomena · Physics 2022-04-20 Timur Dzhatdoev , Egor Podlesnyi , Igor Vaiman

The advent of the Cherenkov Telescope Array Observatory (CTAO) and recent advances in reconstruction of gamma-ray photons with Cherenkov telescopes are bound to push the limit of angular resolution to an unprecedented precision of less than…

High Energy Astrophysical Phenomena · Physics 2026-04-23 Georg Schwefer , Jim Hinton

The Large High Altitude Air Shower Observatory (LHAASO) has detected multiple ultra-high energy (UHE; E$_\gamma \ge$ 100 TeV) gamma-ray sources in the Milky Way Galaxy, which are associated with Galactic ``PeVatrons'' that accelerate…

High Energy Astrophysical Phenomena · Physics 2024-01-10 Agnibha De Sarkar , Pratik Majumdar

Cosmic rays (protons and other atomic nuclei) are believed to gain energies of petaelectronvolts (PeV) and beyond at astrophysical particle accelerators called 'PeVatrons' inside our Galaxy. Although a characteristic feature of a PeVatron…

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

We perform simulations of Cherenkov Telescope Array (CTA) observations of a young supernova remnant RX J1713.7-3946. This target is not only one of the brightest sources ever discovered in very high-energy gamma rays but also well observed…

Recent observations by the Large High Altitude Air Shower Observatory (LHAASO) detected Ultra High Energy (UHE) photons in the range 100 TeV to 1.4 PeV from twelve sources including Crab nebula. The detection of these photons demands the…

High Energy Astrophysical Phenomena · Physics 2024-12-20 Gunindra Krishna Mahanta , Subhashis Roy , Sagar Godambe , Bitan Ghosal , Nilay Bhatt , Subir Bhattacharyya

The TeV gamma-ray source MGRO J1908+06 is one of the highest-energy sources known, with observed emission by the High Altitude Water Cherenkov (HAWC) Observatory extending well past 100 TeV. The source exhibits both energy-dependent…

High Energy Astrophysical Phenomena · Physics 2021-08-02 Kelly Malone , HAWC Collaboration

The Cherenkov Telescope Array Observatory (CTAO) will enable detailed studies of Active Galactic Nuclei (AGN) in the very-high-energy (VHE) regime, as the next-generation ground-based gamma-ray observatory, designed to enhance sensitivity…

As the lifetime of a black hole decreases, the energy of the Hawking radiation it emits increases, ultimately culminating in its disappearance through a powerful burst of gamma rays. For primordial black holes (PBHs) with an initial mass of…

High Energy Astrophysical Phenomena · Physics 2025-09-03 Chen Yang , Jun-Da Pan , Xin Zhang

The Cherenkov Telescope Array (CTA) Observatory will be the next-generation ground-based very-high-energy gamma-ray observatory, sensitive from 20 GeV up to 300 TeV. The Large-Sized Telescope prototype (LST-1), currently in the…

High Energy Astrophysical Phenomena · Physics 2022-12-06 Jakub Juryšek , Matteo Balbo , Dominique Eckert , Andrea Tramacere , Giorgio Pirola , Roland Walter