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The upcoming Cherenkov Telescope Array (CTA) project is expected to provide unprecedented sensitivity in the low-energy ( <~100 GeV) range for Cherenkov telescopes. In order to exploit fully the potential of the telescopes the standard…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Julian Sitarek , Dorota Sobczyńska , Michał Szanecki , Katarzyna Adamczyk

The last 20 years have seen the development of new techniques in Astroparticle Physics providing access to the highest end of the electromagnetic spectrum. It has been shown that some sources emit photons up to energies close to 100 TeV.…

High Energy Astrophysical Phenomena · Physics 2015-08-04 J. L. Contreras , J. Rosado , F. Arqueros , M. López , J. A. Barrio , M. Nievas

Observations with the current generation of very-high-energy gamma-ray telescopes have revealed an astonishing variety of particle accelerators in the Milky Way, such as supernova remnants, pulsar wind nebulae, and binary systems. The…

Instrumentation and Methods for Astrophysics · Physics 2021-09-09 Q. Remy , L. Tibaldo , F. Acero , M. Fiori , J. Knödlseder , B. Olmi , P. Sharma

The Cherenkov Telescope Array (CTA) is the next-generation gamma-ray observatory with sensitivity in the energy range from 20 GeV to beyond 300 TeV. CTA is proposed to consist of two arrays of 40-100 imaging atmospheric Cherenkov…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 G. Maier , L. Arrabito , K. Bernlöhr , J. Bregeon , F. Di Pierro , T. Hassan , T. Jogler , J. Hinton , A. Moralejo , M. Wood

The Cherenkov Telescope Array Observatory (CTAO) will be a ground-based Cherenkov telescope performing wide-sky surveys, ideal for anisotropy studies such as cross-correlations with tracers of the cosmic large-scale structure.…

High Energy Astrophysical Phenomena · Physics 2026-03-25 Elena Pinetti , Veronika Vodeb , Aurelio Amerio , Alessandro Cuoco , Stefano Camera , Nicolao Fornengo , Gabrijela Zaharijas

Dwarf galaxies are widely believed to be among the best targets for indirect dark matter searches using high-energy gamma rays; and indeed gamma-ray emission from these objects has long been a subject of detailed study for ground-based…

High Energy Astrophysical Phenomena · Physics 2012-01-27 A. Viana , M. C. Medina , J. Peñarrubia , P. Brun , J. F. Glicenstein , K. Kosack , E. Moulin , M. Naumann-Godo , B. Peyaud

We show that the Cherenkov Telescope Array (CTA) can realistically challenge the Inert Doublet Model, excluding its heavy regime up to dark matter masses of 800 GeV and probing a large fraction of the remaining viable parameter space at…

High Energy Physics - Phenomenology · Physics 2016-04-13 Farinaldo S. Queiroz , Carlos E. Yaguna

The Cherenkov Telescope Array (CTA) will be the next generation ground-based observatory for very-high-energy (VHE) gamma-ray astronomy, with the deployment of tens of highly sensitive and fast-reacting Cherenkov telescopes. It will cover a…

In this article, the capability of present (H.E.S.S., MAGIC, VERITAS) and planned (CTA) ground-based Cherenkov telescope systems for detecting angular anisotropies in the diffuse gamma-ray background is investigated. Following up on a study…

High Energy Astrophysical Phenomena · Physics 2014-02-07 Joachim Ripken , Alessandro Cuoco , Hannes-S. Zechlin , Jan Conrad , Dieter Horns

We provide an updated and improved study of the prospects of the H.E.S.S. and Cherenkov Telescope Array (CTA) experiments in testing neutralino dark matter in the Minimal Supersymmetric Standard Model with nine free parameters (p9MSSM). We…

We present GammaBayes, a Bayesian Python package for dark matter detection with the Cherenkov Telescope Array (CTA). GammaBayes takes as input the CTA measurements of gamma rays and a user-specified dark-matter particle model. It outputs…

High Energy Astrophysical Phenomena · Physics 2024-08-05 Liam Pinchbeck , Eric Thrane , Csaba Balazs

M31 and M33 are the closest spiral galaxies and the largest members (together with the Milky Way) of the Local group, which makes them interesting targets for indirect dark matter searches. In this paper, we present studies of the expected…

Under the assumption that dark matter is made of new particles, annihilations of those are required to reproduce the correct dark matter abundance in the Universe. This process can occur in dense regions of our Galaxy such as the Galactic…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Pierre Brun

As the largest gravitationally bound objects in the Universe, galaxy clusters have provided the first piece of evidence for the presence of dark matter and may be suitable targets for indirect dark matter searches. Among various signals,…

High Energy Astrophysical Phenomena · Physics 2024-07-17 Yi-Zhong Fan , Zhao-Qiang Shen , Yun-Feng Liang , Xiang Li , Kai-Kai Duan , Zi-Qing Xia , Xiao-Yuan Huang , Lei Feng , Qiang Yuan

The High Altitude Water Cherenkov (HAWC) gamma-ray observatory is a wide field-of-view observatory sensitive to 500 GeV - 100 TeV gamma rays and cosmic rays. With its observations over 2/3 of the sky every day, the HAWC observatory is…

High Energy Astrophysical Phenomena · Physics 2018-03-14 A. U. Abeysekara , A. M. Albert , R. Alfaro , C. Alvarez , J. D. Álvarez , R. Arceo , J. C. Arteaga-Velázquez , D. Avila Rojas , H. A. Ayala Solares , A. Becerril , E. Belmont-Moreno , S. Y. BenZvi , A. Bernal , C. Brisbois , K. S. Caballero-Mora , T. Capistrán , A. Carramiñana , S. Casanova , M. Castillo , U. Cotti , J. Cotzomi , C. De León , E. De la Fuente , R. Diaz Hernandez , B. L. Dingus , M. A. DuVernois , J. C. Díaz-Vélez , K. Engel , O. Enríquez-Rivera , D. W. Fiorino , H. Fleischhack , N. Fraija , J. A. García-González , F. Garfias , A. González Muñoz , M. M. González , J. A. Goodman , Z. Hampel-Arias , J. P. Harding , S. Hernandez , A. Hernandez-Almada , F. Hueyotl-Zahuantitla , P. Hüntemeyer , A. Iriarte , A. Jardin-Blicq , V. Joshi , S. Kaufmann , R. J. Lauer , W. H. Lee , D. Lennarz , H. León Vargas , J. T. Linnemann , A. L. Longinotti , G. Luis-Raya , R. Luna-García , R. López-Coto , K. Malone , S. S. Marinelli , O. Martinez , I. Martinez-Castellanos , J. Martínez-Castro , J. A. Matthews , P. Miranda-Romagnoli , E. Moreno , M. Mostafá , L. Nellen , M. Newbold , M. U. Nisa , R. Noriega-Papaqui , R. Pelayo , J. Pretz , E. G. Pérez-Pérez , Z. Ren , C. D. Rho , N. L. Rodd , D. Rosa-González , M. Rosenberg , E. Ruiz-Velasco , B. R. Safdi , H. Salazar , F. Salesa Greus , A. Sandoval , M. Schneider , G. Sinnis , A. J. Smith , R. W. Springer , P. Surajbali , I. Taboada , O. Tibolla , K. Tollefson , I. Torres , T. N. Ukwatta , G. Vianello , L. Villaseñor , T. Weisgarber , S. Westerhoff , I. G. Wisher , J. Wood , T. Yapici , G. B. Yodh , P. W. Younk , A. Zepeda , H. Zhou

The Cherenkov Telescope Array (CTA) represents the next generation of ground based instruments for Very High Energy gamma-ray astronomy. It is expected to improve on the sensitivity of current instruments by an order of magnitude and…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 T. Hassan , L. Arrabito , K. Bernlör , J. Bregeon , J. Hinton , T. Jogler , G. Maier , A. Moralejo , F. Di Pierro , M. Wood

The Cherenkov Telescope Array (CTA) will provide very-high-energy (VHE; >~30 GeV) gamma-ray spectra of unprecedented resolution over a large energy range. It is likely that, at least for bright sources, spectral features will be revealed…

High Energy Astrophysical Phenomena · Physics 2019-08-14 A. Zech , M. Cerruti

We discuss the potential for the detection of dark matter and the characterization of its particle nature via the observation of dark matter subhalos. Specifically, we discuss the search for dark matter Galactic subhalos in the gamma-ray…

In the absence of a clear hint of dark matter (DM) signals in the GeV regime so far, heavy, $\mathcal{O}$(TeV) DM candidates are gradually earning more and more attention within the community. Among others, extra-dimensional…

High Energy Astrophysical Phenomena · Physics 2020-10-27 Alejandra Aguirre-Santaella , Viviana Gammaldi , Miguel A. Sánchez-Conde , Daniel Nieto