The TAIGA experiment: From cosmic-ray to gamma-ray astronomy in the Tunka valley

Буднев, Н.; Астапов, И. И.; Barbashina, N. S.; Barnyakov, A.; Bezyazeekov, P. A.; Bogdanov, A. G.; Boreyko, V.; Brückner, Martin; Чиавасса, А.; Chvalaev, O.; Dyachok, A. N.; Epimakhov, S.; Fedorov, Oleg; Fedoseev, E. N.; Gafarov, A.; Gorbunov, N.; Grebenyuk, V.; Gress, O.; Гресс, Т.; Grinyuk, A.; Гришин, О.; Haungs, A.; Hiller, R.; Horns, D.; Huege, T.; Иванова, А.; Karpov, N.; Калмыков, Н. Н.; Kazarina, Y.; Kirilenko, P.; Kirichkov, N; Kiryuhin, S.; Kleifges, M.; Кокоулин, Р. П.; Компаниец, К. Г.; Коростелева, Е. Е.; Kostunin, D.; Кожин, В. А.; Кравченко, Е. А.; Куннас, М.; Kuzmichev, L. A.; Lenok, Vladimir; Лубсандоржиев, Б.; Лубсандоржиев, Н.; Mirgazov, R.; Mirzoyan, R.; Монхоев, Р.; Nachtigall, R.; Osipova, E.; Пахоруков, А.; Panasyuk, M. I.; Pankov, L.; Перевалов, А. А.; Петрухин, А. А.; Pivovarov, S.; Платонов, В. А.; Poleschuk, V.; Popova, E.; Порелли, А.; Постников, Е.; Prosin, V.; Птускин, В. С.; Пушнин, А.; Рубцов, Г.; Rybov, E.; Самолига, В.; Saunkin, A; Schröder, Frank G.; Semeney, Yu.; Силаев, А.; Скурихин, А. В.; Sokolov, A.; Spiering, C.; Свешникова, Л.; Таболенко, В. А.; Tarashchansky, B.; Tikhonov, Yu. A.; Tkachenko, A.; Ткачев, Л.; Tluczykont, M.; Воронин, Д.; Wischnewski, R.; Yashin, I. I.; Yurin, K. O.; Загородников, А.; Zirakashvili, V. N.; Зурбанов, В. Л.

doi:10.1016/j.nima.2016.06.041

Cited by 34 publications

(26 citation statements)

References 17 publications

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“…Crab nebula photon spectrum, according to different theoretical models, continues up to 100-400 TeV [38]. At these energies, it would be detected by HAWC [39], CTA [40,41], Carpet-2 [42], TAIGA [43], LHAASO [44]. Detection of photons from Crab (or other galactic sources) in these energy range may increase the bound (34) up to the level M LV > 5 × 10 14 GeV.…”

Section: Discussionmentioning

confidence: 99%

Photon splitting constraint on Lorentz invariance violation from Crab Nebula spectrum

Astapov¹,

Satunin²

2019

J. Cosmol. Astropart. Phys.

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We calculate the decay width of the photon splitting into three photons in a model of quantum electrodynamics with broken Lorentz invariance. We show that this process can lead to a cut-off in the very-high-energy part of a photon spectra of astrophysical sources. We obtain the 95% CL bound on the Lorentz violating mass scale for photons from the analysis of the very-high-energy part of the Crab Nebula spectrum, obtained by HEGRA. This bound improves previous constraints by more than an order of magnitude.

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Section: Discussionmentioning

confidence: 99%

Photon splitting constraint on Lorentz invariance violation from Crab Nebula spectrum

Astapov¹,

Satunin²

2019

J. Cosmol. Astropart. Phys.

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“…Therefore, activities are ongoing to enhance the IceTop particle detector array at the South Pole with radio antennas [36]. Furthermore, the TAIGA facility comprises muon detectors and radio antennas (Tunka-Rex), at which the technique could directly be applied [37]. The Giant Radio Array for Neutrino Detection (GRAND) is a huge antenna array planned in China focusing on inclined showers [38].…”

Section: Discussionmentioning

confidence: 99%

Enhancing the cosmic-ray mass sensitivity of air-shower arrays by combining radio and muon detectors

2019

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The muonic and electromagnetic components of air showers induced by cosmic-ray particles are sensitive to their mass. The sizes of the components can be measured with particle detectors on ground, and the electromagnetic component in addition indirectly via its radio emission in the atmosphere. The electromagnetic particles do not reach the ground for very inclined showers. On the contrary, the atmosphere is transparent for the radio emission and its footprint on ground increases with the zenith angle. Therefore, the radio technique offers a reliable detection over the full range of zenith angles, and in particular for inclined showers. In this work, the mass sensitivity of a combination of the radio emission with the muons is investigated in a case study for the site of the Pierre Auger Observatory using CORSIKA Monte Carlo simulations of showers in the EeV energy range. It is shown, that the radio-muon combination features superior mass separation power in particular for inclined showers, when compared to established mass observables such as a combination of muons and electrons or the shower maximum X max . Accurate measurements of the energy-dependent mass composition of ultra-high energy cosmic rays are essential to understand their still unknown origin. Thus, the combination of muon and radio detectors can enhance the scientific performance of future air-shower arrays and offers a promising upgrade option for existing arrays.

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“…The gamma-ray observatory TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma-ray Astronomy) is intended to register gamma rays and charged cosmic rays in the energy range of 10 13 − 10 18 eV [2]. The installation will include a network of wide field of view (angle of view 0.6 sr) timing Cherenkov light stations (TAIGA-HiSCORE, High Sensitivity Cosmic ORigin Explorer), and up to 16 imaging air Cherenkov telescopes (TAIGA-IACT) with the shower image analysis (FOV is 10 • x10 • ), covering an area of 5 km 2 , and muon detectors with a total area of 2000 m 2 , distributed over an area of 1 km 2 .…”

Section: Introductionmentioning

confidence: 99%

Commissioning the joint operation of the wide angle timing HiSCORE Cherenkov array with the first IACT of the TAIGA experimen

Постников¹,

Астапов²,

Bezyazeekov³

et al. 2017

Proceedings of 35th International Cosmic Ray Conference — PoS(ICRC2017)

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The first IACT as part of the gamma and cosmic-ray experiment TAIGA was installed in the Tunka Valley near Lake Baikal in fall 2016. In the following months different systems of the telescope were put into test operation. We started the commissioning phase of operating the telescope in time coincidence with the wide angle integrating air Cherenkov HiSCORE array, which for the time being comprises 28 working stations. We anticipate that the hybrid operation of the nonimaging and imaging telescopes will lead to a cost-efficient, highly sensitive detector operating in the energy range from 30-50 TeV till several PeV. Here we want to report on the first test results of operating the prototype hybrid array. We will focus on the analysis of count rates and image size spectra for all events detected by the IACT and the joint events detected also by the HiSCORE array, comparing these with expectations from MC simulations.35th International Cosmic Ray Conference

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The TAIGA experiment: From cosmic-ray to gamma-ray astronomy in the Tunka valley

Cited by 34 publications

References 17 publications

Photon splitting constraint on Lorentz invariance violation from Crab Nebula spectrum

Photon splitting constraint on Lorentz invariance violation from Crab Nebula spectrum

Enhancing the cosmic-ray mass sensitivity of air-shower arrays by combining radio and muon detectors

Commissioning the joint operation of the wide angle timing HiSCORE Cherenkov array with the first IACT of the TAIGA experimen

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