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In order to better utilize the information contained in the shower images generated by imaging Cherenkov telescopes (IACTs) equipped with cameras with small pixels, images are fit to a parametrization of image shapes gained from Monte Carlo…

Astrophysics · Physics 2007-05-23 M. Ulrich , A. Daum , G. Hermann , W. Hofmann

The Major Atmospheric Gamma Imaging Cherenkov (MAGIC) telescope system is located on the Canary Island of La Palma and inspects the very high-energy (VHE, few tens of GeV and above) gamma-ray sky. MAGIC consists of two imaging atmospheric…

Instrumentation and Methods for Astrophysics · Physics 2022-11-30 T. Miener , D. Nieto , R. López-Coto , J. L. Contreras , J. G. Green , D. Green , E. Mariotti on behalf of the MAGIC Collaboration

Recently, machine learning has emerged as an alternative, powerful approach for predicting quantum-mechanical properties of molecules and solids. Here, using kernel ridge regression and atomic fingerprints representing local environments of…

Materials Science · Physics 2018-03-08 Teppei Suzuki , Ryo Tamura , Tsuyoshi Miyazaki

With the advent of powerful telescopes such as the Square Kilometer Array and the Vera C. Rubin Observatory, we are entering an era of multiwavelength transient astronomy that will lead to a dramatic increase in data volume. Machine…

Instrumentation and Methods for Astrophysics · Physics 2021-03-09 K. Sooknunan , M. Lochner , Bruce A. Bassett , H. V. Peiris , R. Fender , A. J. Stewart , M. Pietka , P. A. Woudt , J. D. McEwen , O. Lahav

Machine learning has emerged as a powerful tool in the field of gamma-ray astrophysics. The algorithms can distinguish between different source types, such as blazars and pulsars, and help uncover new insights into the high-energy universe.…

High Energy Astrophysical Phenomena · Physics 2024-01-05 Gopal Bhatta , Sarvesh Gharat , Abhimanyu Borthakur , Aman Kumar

We have investigated some features of the density and arrival time distributions of Cherenkov photons in extensive air showers using the CORSIKA simulation package. The main thrust of this study is to see the effect of hadronic interaction…

Instrumentation and Methods for Astrophysics · Physics 2015-02-23 P. Hazarika , U. D. Goswami , V. R. Chitnis , B. S. Acharya , G. S. Das , B. B. Singh , R. J. Britto

Cosmic ray electrons represent a background for gamma-ray observations with Cherenkov telescopes, initiating air-showers which are difficult to distinguish from photon-initiated showers. This similarity, however, and the presence of cosmic…

High Energy Astrophysical Phenomena · Physics 2016-08-16 R. D. Parsons , J. A. Hinton , H. Schoorlemmer

Photovoltaics (PV) are widely used to harvest solar energy, an important form of renewable energy. Photovoltaic arrays consist of multiple solar panels constructed from solar cells. Solar cells in the field are vulnerable to various…

Applications · Statistics 2024-08-13 Xinyi Song , Kennedy Odongo , Francis G. Pascual , Yili Hong

A detailed simulation of vertical showers in atmosphere produced by primary gammas and protons, in the energy range 1-100 TeV, has been performed by means of the FLUKA Monte Carlo code, with the aim of studying the time structure of the…

Astrophysics · Physics 2009-10-30 G. Battistoni , M. Carboni , A. Ferrari , V. Patera

The fluctuations in energy loss to processes that do not generate measurable signals, such as binding energy losses, set the limit on achievable hadronic energy resolution in traditional energy reconstruction techniques. The correlation…

Instrumentation and Detectors · Physics 2025-02-26 N. Akchurin , J. Cash , J. Damgov , X. Delashaw , K. Lamichhane , M. Harris , M. Kelley , S. Kunori , H. Mergate-Cacace , T. Peltola , O. Schneider , J. Sewell

Cosmic rays interacting with the atmosphere allow for the probing of fundamental interactions at ultra-high energies. We thus obtain limits on strongly coupled new physics models via their imprints on cosmic-ray air showers. Using the Monte…

High Energy Physics - Phenomenology · Physics 2019-11-11 Peter Schichtel , Michael Spannowsky , Philip Waite

The studies realized in INRNE (Institute for Nuclear Research and Nuclear Energy) particulary in cosmic rays detection and construction of Muonic Cerenkov Telescope in University of Blagoevgrad [1] shows the need to develop a theoretical…

Computational Physics · Physics 2007-05-23 I. Angelov , E. Duverger , E. Malamova , L. Makovicka , A. Mishev , J. Stamenov

Ground-based observations of Very High Energy (VHE) gamma rays from extreme astrophysical sources are significantly influenced by atmospheric conditions. This is due to the atmosphere being an integral part of the detector when utilizing…

We study the problem of reconstruction of high-energy cosmic rays mass composition from the experimental data of extensive air showers. We develop several machine learning methods for the reconstruction of energy spectra of separate primary…

High Energy Astrophysical Phenomena · Physics 2024-01-30 M. Yu. Kuznetsov , N. A. Petrov , I. A. Plokhikh , V. V. Sotnikov

We describe a method of reconstructing air showers induced by cosmic rays using deep learning techniques. We simulate an observatory consisting of ground-based particle detectors with fixed locations on a regular grid. The detector's…

Instrumentation and Methods for Astrophysics · Physics 2017-11-01 Martin Erdmann , Jonas Glombitza , David Walz

In modern astrophysics, the machine learning has increasingly gained more popularity with its incredibly powerful ability to make predictions or calculated suggestions for large amounts of data. We describe an application of the supervised…

Astrophysics of Galaxies · Physics 2018-12-26 Yu Bai , JiFeng Liu , Song Wang , Fan Yang

The High Altitude Water Cherenkov (HAWC) gamma-ray observatory observes atmospheric showers produced by incident gamma rays and cosmic rays with energy from 300 GeV to more than 100 TeV. A crucial phase in analyzing gamma-ray sources using…

High Energy Astrophysical Phenomena · Physics 2022-08-25 R. Alfaro , C. Alvarez , J. D. Álvarez , J. R. Angeles Camacho , J. C. Arteaga-Velázquez , D. Avila Rojas , H. A. Ayala Solares , R. Babu , E. Belmont-Moreno , C. Brisbois , K. S. Caballero-Mora , T. Capistrán , A. Carramiñana , S. Casanova , O. Chaparro-Amaro , U. Cotti , J. Cotzomi , S. Coutiño de León , E. De la Fuente , C. de León , R. Diaz Hernandez , B. L. Dingus , M. A. DuVernois , M. Durocher , J. C. Díaz-Vélez , R. W. Ellsworth , K. Engel , C. Espinoza , K. L. Fan , M. Fernández Alonso , N. Fraija , D. Garcia , J. A. García-González , F. Garfias , M. M. González , J. A. Goodman , J. P. Harding , S. Hernandez , B. Hona , D. Huang , F. Hueyotl-Zahuantitla , P. Hüntemeyer , A. Iriarte , A. Jardin-Blicq , V. Joshi , S. Kaufmann , G. J. Kundem A. Lara , W. H. Lee , J. Lee , H. León Vargas , J. T. Linnemann , G. Luis-Raya , J. Lundeen , K. Malone , V. Marandon , O. Martinez , J. Martínez-Castro , J. A. Matthews , P. Miranda-Romagnoli , J. A. Morales-Soto , A. Nayerhoda , L. Nellen , M. U. Nisa , R. Noriega-Papaqui , L. Olivera-Nieto , N. Omodei , A. Peisker , Y. Pérez Araujo , E. G. Pérez-Pérez , C. D. Rho , D. Rosa-González , E. Ruiz-Velasco , H. Salazar , F. Salesa Greus , A. Sandoval , P. M. Saz Parkinson , J. Serna-Franco , A. J. Smith , R. W. Springer , O. Tibolla , K. Tollefson , I. Torres , R. Torres-Escobedo , R. Turner , F. Ureña-Mena , L. Villaseñor , X. Wang , I. J. Watson , F. Werner , E. Willox , J. Wood , A. Zepeda , H. Zhou

The Cherenkov Telescope Array (CTA) is the future ground-based observatory for gamma-ray astronomy at very high energies. The atmosphere is an integral part of every Cherenkov telescope. Different atmospheric conditions, such as clouds, can…

Accurate classification of weather conditions in images is essential for enhancing the performance of object detection and classification models under varying weather conditions. This paper presents a comprehensive study on classifying…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Eden Ship , Eitan Spivak , Shubham Agarwal , Raz Birman , Ofer Hadar

Cosmic ray shower detection using large radio arrays has gained significant traction in recent years. With massive improvements in signal modelling and microscopic simulations, the analysis of incoming events is still severely limited by…

High Energy Astrophysical Phenomena · Physics 2025-07-11 Pranav Sampathkumar , Tim Huege , Andreas Haungs , Ralph Engel