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

Буднев, Н. М.; Астапов, И. И.; Bezyazeekov, P. A.; Bogdanov, A. G.; Boreyko, V.; Büker, Matthias; Brückner, Martin; Чиавасса, А.; Chvalaev, O.; Гресс, О. А.; Гресс, Т.; Гришин, О.; Dyachok, A. N.; Epimakhov, S.; Fedorov, Oleg; Гафаров, А. Р.; Gorbunov, N.; Grebenyuk, V.; Grinuk, A.; Haungs, A.; Hiller, R.; Horns, D.; Huege, T.; Иванова, А.; Kalinin, A.; Karpov, N.; Калмыков, Н. Н.; Kazarina, Y.; Kirichkov, N; Kiryuhin, S.; Kleifges, M.; Кокоулин, Р. П.; Komponiest, K.; Konstantinov, A. A.; Коростелева, Е. Е.; Kostunin, D.; Кожин, В. А.; Krömer, O.; Куннас, М.; Kuzmichev, L. A.; Lenok, Vladimir; Лубсандоржиев, Б.; Лубсандоржиев, Н.; Миргазов, Р. Р.; Mirzoyan, R.; Монхоев, Р.; Nachtigall, R.; Пахоруков, А.; Panasyuk, M. I.; Pankov, L.; Перевалов, А. А.; Петрухин, А. А.; Платонов, В. А.; Poleschuk, V.; Popova, E.; Порелли, А.; Prosin, V.; Птускин, В. С.; Рубцов, Г.; Пушнин, А.; Самолига, В.; Satunin, Petr; Schröder, Frank G.; Semeney, Yu.; Силаев, А.; Скурихин, А. В.; Slucka, V; Spiering, C.; Свешникова, Л.; Таболенко, В. А.; Tarashansky, B.; Tkachenko, A.; Ткачев, Л.; Tluczykont, M.; Воронин, Д.; Wischnewski, R.; Загородников, А.; Зурбанов, В. Л.; Yashin, I. I.

doi:10.1088/1742-6596/718/5/052006

Cited by 34 publications

(31 citation statements)

References 11 publications

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“…Tunka Radio Extension (Tunka-Rex) is a digital antenna array located at the Tunka Advanced Instrument for cosmic rays and Gamma Astronomy (TAIGA) observatory [5]. TAIGA setups can be arbitrary divided in two main instruments: cosmic-ray instrument (Tunka-133 [6], Tunka-Rex [7] and Tunka-Grande [8]) and gamma-ray instrument (Tunka-HiSCORE [9] and TAIGA-IACT [10]).…”

Section: Tunka Radio Extension: History Location and Equipmentmentioning

confidence: 99%

Present status and prospects of the Tunka Radio Extension

et al. 2019

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The Tunka Radio Extension (Tunka-Rex) is a digital radio array operating in the frequency band of 30-80 MHz and detecting radio emission from air-showers produced by cosmic rays with energies above 100 PeV. The experiment is installed at the site of the TAIGA (Tunka Advanced Instrument for cosmic rays and Gamma Astronomy) observatory and performs joint measurements with the co-located particle and air-Cherenkov detectors in passive mode receiving a trigger from the latter. Tunka-Rex collects data since 2012, and during the last five years went through several upgrades. As a result the density of the antenna field was increased by three times since its commission. In this contribution we present the latest results of Tunka-Rex experiment, particularly an updated analysis and efficiency study, which have been applied to the measurement of the mean shower maximum as a function of energy for cosmic rays of energies up to EeV. The future plans are also discussed: investigations towards an energy spectrum of cosmic rays with Tunka-Rex and their mass composition using a combination of Tunka-Rex data with muon measurements by the particle detector Tunka-Grande.

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Section: Tunka Radio Extension: History Location and Equipmentmentioning

confidence: 99%

Present status and prospects of the Tunka Radio Extension

et al. 2019

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“…Extensive air shower arrays, such as LHAASO [75], TAIGA (HISCORE) [76] and Carpet-2 [77] are designed to register photons with energies up to (a few)×10 2 TeV. If the Crab spectrum does not have a sharp cutoff up to these energies, they will be able to detect the corresponding flux with high significance.…”

Section: Estimates For Future Experimentsmentioning

confidence: 99%

Constraints on violation of Lorentz invariance from atmospheric showers initiated by multi-TeV photons

Рубцов

Satunin

Sibiryakov

2017

J. Cosmol. Astropart. Phys.

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We discuss the effect of hypothetical violation of Lorentz invariance at high energies on the formation of atmospheric showers by very-high-energy gamma rays. In the scenario where Lorentz invariance violation leads to a decrease of the photon velocity with energy the formation of the showers is suppressed compared to the Lorentz invariant case. Absence of such suppression in the high-energy part of spectrum of the Crab nebula measured independently by HEGRA and H.E.S.S. collaborations is used to set lower bounds on the energy scale of Lorentz invariance violation. These bounds are competitive with the strongest existing constraints obtained from timing of variable astrophysical sources and the absorption of TeV photons on the extragalactic background light. They will be further improved by the next generation of multi-TeV gamma-ray observatories.

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“…The simulation approach described here will also be useful to study proposals to operate IACTs in Fluorescence mode [7], which could use the existing hardware, and other detector concepts of Cherenkov-Fluorescence telescopes [8][9][10]. In addition, the increasing availability of computer power makes it thinkable to include the full implementation of the fluorescence component in the IACT simulation codes even if it is a second order effect.…”

Section: Pos(icrc2017)839mentioning

confidence: 99%

A Monte Carlo study of the relevance of fluorescence radiation in VHE gamma ray observations with Cherenkov telescopes

Morcuende¹,

Contreras²,

Rosado³

et al. 2017

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

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It is generally assumed that fluorescence radiation does not play a significant role in the performance of Cherenkov telescopes. However, this assumption is required to be verified using detailed Monte Carlo simulations. In order to do this, we have implemented the production and tracking of fluorescence radiation inside the CORSIKA code, and simulated gamma-ray induced showers in the very high energy range. The most accurate fluorescence-yield data available so far was used for this purpose. The distribution of both light components on the ground has been studied as a function of various parameters affecting the detection and reconstruction of gamma-ray showers such as the angular aperture. From these distributions, we determined the conditions under which fluorescence radiation becomes significant. These results will also be useful to estimate the corresponding systematic errors in Cherenkov telescope observations. The full simulation results have been cross-checked, on a small sample of events, against numerical calculations based on a one-dimension shower profile and found to be compatible with each other. Both tools can be used for further investigations, like studying the possibility to modify Cherenkov telescopes for the measurement of fluorescence induced by extensive air showers.

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

Cited by 34 publications

References 11 publications

Present status and prospects of the Tunka Radio Extension

Present status and prospects of the Tunka Radio Extension

Constraints on violation of Lorentz invariance from atmospheric showers initiated by multi-TeV photons

A Monte Carlo study of the relevance of fluorescence radiation in VHE gamma ray observations with Cherenkov telescopes

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