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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

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…

Gamma-ray photons can convert into axion-like particles (ALPs) and vice versa when interacting with astrophysical magnetic fields. The conversions of ALPs may have important implications for astrophysics since they would imprint…

High Energy Astrophysical Phenomena · Physics 2013-05-02 Miguel A. Sanchez-Conde , Stefan Funk , Frank Krennrich , Amanda Weinstein

The measurement of $\gamma$-rays originating from active galactic nuclei offers the unique opportunity to study the propagation of very-high-energy photons over cosmological distances. Most prominently, $\gamma$-rays interact with the…

The launch of the Fermi satellite in 2008, with its Large Area Telescope (LAT) on board, has opened a new era for the study of gamma-ray sources at GeV ($10^9$ eV) energies. Similarly, the commissioning of the third generation of imaging…

Instrumentation and Methods for Astrophysics · Physics 2023-11-07 Denys Malyshev , Lars Mohrmann

The Cherenkov Telescope Array (CTA) will be the world's leading ground-based gamma-ray observatory allowing us to study very high energy phenomena in the Universe. CTA will produce huge data sets, of the order of petabytes, and the…

Instrumentation and Methods for Astrophysics · Physics 2018-10-02 S. Mangano , C. Delgado , M. Bernardos , M. Lallena , J. J. Rodríguez Vázquez

The Cherenkov Telescope Array (CTA) is planned to be the next-generation very-high-energy (VHE; E > 100 GeV) gamma-ray observatory. It is anticipated that CTA will improve upon the sensitivity of the current generation of VHE experiments,…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 W. Benbow , A. N. Otte

Galactic cosmic rays are commonly believed to be accelerated at supernova remnants via diffusive shock acceleration. Despite the popularity of this idea, a conclusive proof for its validity is still missing. Gamma-ray astronomy provides us…

High Energy Astrophysical Phenomena · Physics 2019-08-13 F. Acero , A. Bamba , S. Casanova , E. de Cea , E. de Ona Wilhelmi , S. Gabici , Y. Gallant , D. Hadasch , A. Marcowith , G. Pedaletti , O. Reimer , M. Renaud , D. F. Torres , F. Volpe

Estimation of the amount of cosmic-ray induced background events is a challenging task for Imaging Atmospheric Cherenkov Telescopes (IACTs). Most approaches rely on a model of the background signal derived from archival observations, which…

Instrumentation and Methods for Astrophysics · Physics 2024-10-16 Tina Wach , Alison Mitchell , Lars Mohrmann

Most major scientific results produced by ground-based gamma-ray telescopes in the last 30 years have been obtained by expert members of the collaborations operating these instruments. This is due to the proprietary data and software…

Instrumentation and Methods for Astrophysics · Physics 2021-10-01 C. Nigro , T. Hassan , L. Olivera-Nieto

The Cherenkov Telescope Array (CTA) is the next-generation ground-based observatory for very-high energy gamma-ray astronomy. CTA will have unparalleled sensitivity and angular resolution and will detect gamma-ray sources nearly 100 times…

Instrumentation and Methods for Astrophysics · Physics 2022-09-07 Leslie Taylor

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) will be the next high-energy gamma-ray observatory. Selection of the sites, one in each hemisphere, is not obvious since several factors have to be taken into account. Among them, and probably the most…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Stephane Vincent

SpectraPy is an Astropy affiliated package for spectroscopic data reduction. It collects algorithms and methods for data reduction of astronomical spectra obtained by through-slits spectrographs. It has been created to fill the gap in…

Instrumentation and Methods for Astrophysics · Physics 2023-02-10 Marco Fumana

The ground-based technique for imaging atmospheric Cherenkov telescopes became a rapidly developing and powerful branch of science. Thanks to this technique, over 250 very high-energy gamma-ray sources of galactic and extragalactic origin…

High Energy Astrophysical Phenomena · Physics 2024-06-24 Razmik Mirzoyan

The Cherenkov Telescope Array (CTA) is the planned next-generation instrument for ground-based gamma-ray astronomy, currently under preparation by a world-wide consortium. The FlashCam group is preparing a photomultiplier-based camera for…

Instrumentation and Methods for Astrophysics · Physics 2017-08-09 F. Eisenkolb , S. Diebold , C. Kalkuhl , G. Pühlhofer , A. Santangelo , T. Schanz , C. Tenzer , the FlashCam team , the CTA consortium

The rise of direct detection of gravitational waves (GWs) started a new era in multi-messenger astrophysics. Like GWs, many other astrophysical transient sources suffer from poor localization, which can span tens to thousands of square…

Instrumentation and Methods for Astrophysics · Physics 2025-08-12 Halim Ashkar , Monica Seglar-Arroyo , Fabian Schüssler , Weizmann Kiendrébéogo , Mathieu de Bony de Lavergne

The Cherenkov Telescope Array (CTA) consortium aims to create the next generation Very High Energy gamma-ray observatory. It will be devoted to the observation of gamma rays over a wide band of energy, from 20 GeV to 300 TeV. Three…

Instrumentation and Methods for Astrophysics · Physics 2015-08-27 Jean-Laurent Dournaux , Jean-Michel Huet , Delphine Dumas , Jean-Philippe Amans , Gilles Fasola , Philippe Laporte , Jean-Jacques Bousquet , Hélène Sol

The current generation of Cherenkov telescopes is mainly limited in their gamma-ray energy and flux reconstruction by uncertainties in the determination of atmospheric parameters. The Cherenkov Telescope Array (CTA) aims to provide…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 M. Doro , M. Gaug , O. Blanch , LL. Font , D. Garrido , A. Lopez-Oramas , M. Martinez

Telescopes -- far seeing -- have since centuries revealed insights to objects at cosmic distances. Adopted for gamma-ray-astronomy, ground based Cherenkov-telescopes image the faint Cherenkov-light of air-showers induced by cosmic…

Instrumentation and Methods for Astrophysics · Physics 2019-05-01 Sebastian Achim Mueller
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